./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d57b5e0932e2ae1d13ff96f4ee516144e471d697de2e183c71b602b9615c31f3 --- 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-e04fb08 [2022-11-16 16:22:20,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:22:20,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:22:20,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:22:20,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:22:20,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:22:20,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:22:20,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:22:20,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:22:20,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:22:20,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:22:20,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:22:20,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:22:20,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:22:20,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:22:20,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:22:20,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:22:20,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:22:20,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:22:20,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:22:20,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:22:20,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:22:20,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:22:20,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:22:20,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:22:20,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:22:20,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:22:20,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:22:20,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:22:20,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:22:20,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:22:20,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:22:20,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:22:20,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:22:20,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:22:20,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:22:20,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:22:20,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:22:20,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:22:20,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:22:20,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:22:20,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 16:22:20,524 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:22:20,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:22:20,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:22:20,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:22:20,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:22:20,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:22:20,533 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:22:20,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:22:20,533 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:22:20,533 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:22:20,534 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:22:20,535 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:22:20,535 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:22:20,535 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:22:20,535 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:22:20,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:22:20,536 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:22:20,536 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:22:20,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:22:20,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:22:20,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:22:20,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:22:20,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:22:20,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:22:20,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:22:20,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:22:20,540 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:22:20,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:22:20,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:22:20,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:22:20,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:22:20,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:22:20,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:22:20,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:22:20,542 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:22:20,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:22:20,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:22:20,543 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:22:20,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:22:20,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:22:20,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:22:20,543 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_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57b5e0932e2ae1d13ff96f4ee516144e471d697de2e183c71b602b9615c31f3 [2022-11-16 16:22:20,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:22:20,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:22:20,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:22:20,869 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:22:20,870 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:22:20,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2022-11-16 16:22:20,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/05610bc7d/61bcd70ed7dc48fd99d7e59cddbfdc75/FLAG1df911293 [2022-11-16 16:22:21,382 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:22:21,383 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2022-11-16 16:22:21,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/05610bc7d/61bcd70ed7dc48fd99d7e59cddbfdc75/FLAG1df911293 [2022-11-16 16:22:21,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/05610bc7d/61bcd70ed7dc48fd99d7e59cddbfdc75 [2022-11-16 16:22:21,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:22:21,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:22:21,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:22:21,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:22:21,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:22:21,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:21" (1/1) ... [2022-11-16 16:22:21,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc9a8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:21, skipping insertion in model container [2022-11-16 16:22:21,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:21" (1/1) ... [2022-11-16 16:22:21,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:22:21,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:22:22,003 WARN L229 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_58361612-85b5-45b4-8ada-803a195bd554/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i[948,961] [2022-11-16 16:22:22,015 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:805) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1827) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1451) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1085) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1474) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2365) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 16:22:22,021 INFO L158 Benchmark]: Toolchain (without parser) took 244.74ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 96.4MB in the end (delta: -17.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:22:22,022 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:22:22,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.20ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 96.4MB in the end (delta: -18.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:22:22,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.20ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 96.4MB in the end (delta: -18.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:805) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d57b5e0932e2ae1d13ff96f4ee516144e471d697de2e183c71b602b9615c31f3 --- 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-e04fb08 [2022-11-16 16:22:24,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:22:24,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:22:24,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:22:24,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:22:24,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:22:24,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:22:24,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:22:24,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:22:24,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:22:24,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:22:24,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:22:24,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:22:24,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:22:24,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:22:24,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:22:24,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:22:24,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:22:24,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:22:24,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:22:24,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:22:24,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:22:24,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:22:24,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:22:24,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:22:24,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:22:24,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:22:24,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:22:24,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:22:24,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:22:24,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:22:24,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:22:24,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:22:24,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:22:24,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:22:24,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:22:24,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:22:24,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:22:24,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:22:24,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:22:24,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:22:24,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-16 16:22:24,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:22:24,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:22:24,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:22:24,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:22:24,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:22:24,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:22:24,327 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:22:24,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:22:24,328 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:22:24,328 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:22:24,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:22:24,328 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:22:24,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:22:24,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:22:24,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:22:24,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:22:24,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:22:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:22:24,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:22:24,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 16:22:24,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 16:22:24,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 16:22:24,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:22:24,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:22:24,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:22:24,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:22:24,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:22:24,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 16:22:24,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:22:24,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:22:24,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:22:24,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:22:24,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:22:24,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 16:22:24,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 16:22:24,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:22:24,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:22:24,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 16:22:24,335 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_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57b5e0932e2ae1d13ff96f4ee516144e471d697de2e183c71b602b9615c31f3 [2022-11-16 16:22:24,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:22:24,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:22:24,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:22:24,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:22:24,763 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:22:24,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2022-11-16 16:22:24,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/a683fd9be/3c7a8089cb6840da8df997b637e2e046/FLAGee87e06c6 [2022-11-16 16:22:25,469 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:22:25,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2022-11-16 16:22:25,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/a683fd9be/3c7a8089cb6840da8df997b637e2e046/FLAGee87e06c6 [2022-11-16 16:22:25,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/data/a683fd9be/3c7a8089cb6840da8df997b637e2e046 [2022-11-16 16:22:25,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:22:25,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:22:25,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:22:25,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:22:25,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:22:25,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:25" (1/1) ... [2022-11-16 16:22:25,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a156f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:25, skipping insertion in model container [2022-11-16 16:22:25,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:22:25" (1/1) ... [2022-11-16 16:22:25,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:22:25,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:22:26,018 WARN L229 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_58361612-85b5-45b4-8ada-803a195bd554/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i[948,961] [2022-11-16 16:22:26,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:22:26,099 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:22:26,114 WARN L229 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_58361612-85b5-45b4-8ada-803a195bd554/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i[948,961] [2022-11-16 16:22:26,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:22:26,147 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:22:26,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26 WrapperNode [2022-11-16 16:22:26,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:22:26,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:22:26,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:22:26,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:22:26,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,198 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-11-16 16:22:26,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:22:26,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:22:26,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:22:26,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:22:26,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,247 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:22:26,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:22:26,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:22:26,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:22:26,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (1/1) ... [2022-11-16 16:22:26,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:22:26,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:22:26,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:22:26,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:22:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:22:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 16:22:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 16:22:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 16:22:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:22:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:22:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 16:22:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 16:22:26,410 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:22:26,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:22:29,370 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:22:29,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:22:29,377 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:22:29,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:22:29 BoogieIcfgContainer [2022-11-16 16:22:29,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:22:29,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:22:29,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:22:29,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:22:29,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:22:25" (1/3) ... [2022-11-16 16:22:29,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e0418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:22:29, skipping insertion in model container [2022-11-16 16:22:29,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:22:26" (2/3) ... [2022-11-16 16:22:29,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e0418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:22:29, skipping insertion in model container [2022-11-16 16:22:29,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:22:29" (3/3) ... [2022-11-16 16:22:29,389 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_valuebound10.i [2022-11-16 16:22:29,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:22:29,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:22:29,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:22:29,490 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;@54732d10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:22:29,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:22:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:22:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 16:22:29,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:22:29,507 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:22:29,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:22:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:22:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2022-11-16 16:22:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:22:29,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461851738] [2022-11-16 16:22:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:22:29,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:22:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:22:29,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:22:29,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 16:22:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:22:30,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 16:22:30,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:22:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 16:22:30,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:22:30,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:22:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461851738] [2022-11-16 16:22:30,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461851738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:22:30,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:22:30,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:22:30,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747896123] [2022-11-16 16:22:30,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:22:30,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:22:30,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:22:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:22:30,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:22:30,159 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 16:22:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:22:30,199 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2022-11-16 16:22:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:22:30,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-11-16 16:22:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:22:30,220 INFO L225 Difference]: With dead ends: 59 [2022-11-16 16:22:30,220 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 16:22:30,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:22:30,231 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:22:30,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:22:30,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 16:22:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 16:22:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 16:22:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-16 16:22:30,279 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2022-11-16 16:22:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:22:30,280 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-16 16:22:30,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 16:22:30,281 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-16 16:22:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 16:22:30,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:22:30,284 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:22:30,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:22:30,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:22:30,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:22:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:22:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2022-11-16 16:22:30,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:22:30,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235792958] [2022-11-16 16:22:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:22:30,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:22:30,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:22:30,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:22:30,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 16:22:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:22:31,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 16:22:31,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:22:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 16:22:40,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:22:50,517 WARN L855 $PredicateComparison]: unable to prove that (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2)) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse3))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse0))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) is different from true [2022-11-16 16:22:59,724 WARN L855 $PredicateComparison]: unable to prove that (or (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2)) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse3))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse0))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)))) is different from true [2022-11-16 16:23:10,308 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|) (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvmul (_ bv4 32) .cse0))) (bvmul (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul (_ bv8 32) .cse2)))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:23:29,762 WARN L855 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|) (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvmul (_ bv4 32) .cse0))) (bvmul (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul (_ bv8 32) .cse2)))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))))) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:23:51,843 WARN L855 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv10 32))) (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse3 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse3)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)))) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse1)) (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse3))))))))) is different from true [2022-11-16 16:23:51,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:23:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235792958] [2022-11-16 16:23:51,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [235792958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:23:51,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [589817482] [2022-11-16 16:23:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:51,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:23:51,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:23:51,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:23:51,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 16:23:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:59,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 16:23:59,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:24:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 16:24:05,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:24:26,057 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (= (let ((.cse0 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse0)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)))) (bvadd (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse0))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvmul (_ bv4 32) .cse1))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse3)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul (_ bv8 32) .cse3))))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:24:45,081 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ BitVec 32))) (or (= (let ((.cse0 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv4294967294 32)))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse0)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7|)))) (bvadd (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11| .cse0))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse2)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvmul (_ bv4 32) .cse1))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| .cse3)) (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul (_ bv8 32) .cse3))))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_11|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_7| (_ bv2 32)))) (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:25:05,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [589817482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:25:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609333868] [2022-11-16 16:25:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:05,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:25:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:25:05,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:25:05,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:25:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:08,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 16:25:08,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:25:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 16:25:14,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:25:14,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609333868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:14,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:25:14,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 10 [2022-11-16 16:25:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8403245] [2022-11-16 16:25:14,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:14,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 16:25:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:25:14,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 16:25:14,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=133, Unknown=7, NotChecked=196, Total=380 [2022-11-16 16:25:14,053 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-16 16:25:18,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:20,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:25:29,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:29,049 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2022-11-16 16:25:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 16:25:29,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2022-11-16 16:25:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:29,079 INFO L225 Difference]: With dead ends: 44 [2022-11-16 16:25:29,079 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 16:25:29,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=54, Invalid=177, Unknown=7, NotChecked=224, Total=462 [2022-11-16 16:25:29,081 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:29,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 99 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 14.3s Time] [2022-11-16 16:25:29,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 16:25:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2022-11-16 16:25:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 16:25:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-11-16 16:25:29,095 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 29 [2022-11-16 16:25:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:29,096 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-11-16 16:25:29,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-16 16:25:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-11-16 16:25:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 16:25:29,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:29,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:29,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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)] Forceful destruction successful, exit code 0 [2022-11-16 16:25:29,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:25:29,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:25:29,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:25:29,698 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:29,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash -603494572, now seen corresponding path program 1 times [2022-11-16 16:25:29,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:25:29,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431805549] [2022-11-16 16:25:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:29,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:25:29,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:25:29,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:25:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 16:25:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:30,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:25:30,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:25:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 16:25:30,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:25:30,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:25:30,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431805549] [2022-11-16 16:25:30,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431805549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:25:30,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:25:30,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:25:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130469376] [2022-11-16 16:25:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:25:30,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:25:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:25:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:25:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:25:30,422 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 16:25:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:25:31,697 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-11-16 16:25:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:25:31,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2022-11-16 16:25:31,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:25:31,709 INFO L225 Difference]: With dead ends: 46 [2022-11-16 16:25:31,709 INFO L226 Difference]: Without dead ends: 44 [2022-11-16 16:25:31,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:25:31,712 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:25:31,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 135 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 16:25:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-16 16:25:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2022-11-16 16:25:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 16:25:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-16 16:25:31,723 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 34 [2022-11-16 16:25:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:25:31,724 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-16 16:25:31,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 16:25:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-16 16:25:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 16:25:31,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:25:31,726 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:25:31,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:25:31,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:25:31,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:25:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:25:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash -127108025, now seen corresponding path program 1 times [2022-11-16 16:25:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:25:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611281296] [2022-11-16 16:25:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:25:31,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:25:31,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:25:31,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:25:31,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 16:25:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:25:32,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 16:25:32,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:25:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 16:25:49,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:26:23,687 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (let ((.cse4 (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)) (_ bv4 32))) (.cse5 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse2))) (.cse6 (bvmul (_ bv8 32) .cse0)) (.cse7 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1))) (.cse3 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (or (= (bvadd (bvneg (bvmul .cse0 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse1) (bvmul (_ bv4 32) .cse2)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse3) .cse4 .cse5 .cse6 .cse7) (_ bv0 32)) (not (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse2)))) .cse4 .cse5 .cse6 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) .cse7) .cse3)))))) is different from true [2022-11-16 16:26:37,312 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (let ((.cse4 (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)) (_ bv4 32))) (.cse5 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse2))) (.cse6 (bvmul (_ bv8 32) .cse0)) (.cse7 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1))) (.cse3 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (or (= (bvadd (bvneg (bvmul .cse0 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse1) (bvmul (_ bv4 32) .cse2)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse3) .cse4 .cse5 .cse6 .cse7) (_ bv0 32)) (not (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse2)))) .cse4 .cse5 .cse6 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) .cse7) .cse3)) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))))))) is different from true [2022-11-16 16:26:52,264 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (let ((.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse8))) (let ((.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25|)) (.cse0 (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse8)) (_ bv4 32))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse3 (bvmul .cse2 (_ bv8 32))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse7)) (= (bvadd (bvneg .cse7) .cse0 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse6) (bvmul .cse5 (_ bv4 32))) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse1 (bvneg (bvmul .cse2 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse3 .cse4) (_ bv0 32))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:27:20,344 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (let ((.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse8))) (let ((.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25|)) (.cse0 (bvmul (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_25| .cse8)) (_ bv4 32))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) (.cse3 (bvmul .cse2 (_ bv8 32))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18| (_ bv2 32)) (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|)) .cse3 .cse4 (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse7)) (= (bvadd (bvneg .cse7) .cse0 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse6) (bvmul .cse5 (_ bv4 32))) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse1 (bvneg (bvmul .cse2 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_18|))) .cse3 .cse4) (_ bv0 32))))))) (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:27:50,815 WARN L855 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (let ((.cse8 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse4 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse1 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse3))) (.cse0 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (.cse5 (bvmul (_ bv8 32) .cse1)) (.cse6 (bvmul (_ bv4 32) (bvmul .cse4 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse7 (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8))))) (or (not (= .cse0 (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse1))) .cse2 (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse4 (_ bv8 32))))) .cse5 .cse6 .cse7))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv10 32))) (= (_ bv0 32) (bvadd .cse2 (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul (_ bv4 32) .cse3) (bvmul .cse4 (_ bv4 32))))) (bvneg .cse0) .cse5 .cse6 .cse7 (bvneg (bvmul (bvmul (_ bv4 32) |ULTIMATE.start_main_~a~0#1|) .cse1)))) (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32)))))))) is different from true [2022-11-16 16:27:50,816 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:27:50,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611281296] [2022-11-16 16:27:50,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611281296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:27:50,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [60804676] [2022-11-16 16:27:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:27:50,817 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:27:50,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:27:50,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:27:50,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-16 16:27:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:27:58,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 16:27:58,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:28:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 16:28:11,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:28:52,943 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (let ((.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) (.cse7 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse8))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse7 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse3 (bvmul (_ bv8 32) .cse2)) (.cse5 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse4 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35|))) (or (= (bvadd .cse0 .cse1 (bvneg (bvmul .cse2 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) .cse3 (bvneg .cse4) .cse5 (bvneg (bvmul (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|) (bvadd (bvmul .cse6 (_ bv4 32)) (bvmul (_ bv4 32) .cse7))))) (_ bv0 32)) (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvmul (_ bv4 32) .cse2) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse3 (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse7) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse5) .cse4)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:29:21,018 WARN L855 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (let ((.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) (.cse7 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse8))) (let ((.cse0 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse7 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse3 (bvmul (_ bv8 32) .cse2)) (.cse5 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) (.cse4 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_35|))) (or (= (bvadd .cse0 .cse1 (bvneg (bvmul .cse2 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|))) .cse3 (bvneg .cse4) .cse5 (bvneg (bvmul (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|) (bvadd (bvmul .cse6 (_ bv4 32)) (bvmul (_ bv4 32) .cse7))))) (_ bv0 32)) (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvmul (_ bv4 32) .cse2) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse3 (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse7) (bvmul .cse6 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27|)) .cse5) .cse4)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_27| (_ bv2 32))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:29:49,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [60804676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:29:49,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456922073] [2022-11-16 16:29:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:29:49,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:29:49,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:29:49,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:29:49,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 16:29:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:29:54,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 16:29:54,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:30:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-16 16:30:08,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:30:51,421 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (let ((.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) (.cse5 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse8)) (.cse6 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))) (let ((.cse0 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45|)) (.cse1 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse3 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse7 (bvmul (_ bv8 32) .cse2))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (= (bvadd (bvneg .cse0) .cse1 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|) .cse2)) .cse3 .cse4 (bvneg (bvmul (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|) (bvadd (bvmul (_ bv4 32) .cse5) (bvmul (_ bv4 32) .cse6)))) .cse7) (_ bv0 32)) (not (= .cse0 (bvadd (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse5) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) .cse1 .cse3 .cse4 .cse7 (bvneg (bvmul (bvmul (_ bv4 32) .cse2) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:31:19,796 WARN L855 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (let ((.cse2 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) (.cse5 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse8)) (.cse6 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))) (let ((.cse0 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45|)) (.cse1 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_45| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse3 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|))) (.cse7 (bvmul (_ bv8 32) .cse2))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36| (_ bv2 32)) (= (bvadd (bvneg .cse0) .cse1 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|) .cse2)) .cse3 .cse4 (bvneg (bvmul (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|) (bvadd (bvmul (_ bv4 32) .cse5) (bvmul (_ bv4 32) .cse6)))) .cse7) (_ bv0 32)) (not (= .cse0 (bvadd (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse5) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)) .cse1 .cse3 .cse4 .cse7 (bvneg (bvmul (bvmul (_ bv4 32) .cse2) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_36|)))))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:31:37,658 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)))) (let ((.cse4 (bvmul (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)) (_ bv4 32))) (.cse5 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse2))) (.cse6 (bvmul (_ bv8 32) .cse0)) (.cse7 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1))) (.cse3 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) (or (= (bvadd (bvneg (bvmul .cse0 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse1) (bvmul (_ bv4 32) .cse2)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse3) .cse4 .cse5 .cse6 .cse7) (_ bv0 32)) (not (bvult |c_ULTIMATE.start_main_~n~0#1| (_ bv536870911 32))) (not (= (bvadd (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse2)))) .cse4 .cse5 .cse6 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) .cse7) .cse3)) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))))))) is different from true [2022-11-16 16:31:56,929 WARN L855 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (let ((.cse6 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse8))) (let ((.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46|)) (.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse5 (bvmul (_ bv8 32) .cse6))) (or (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse2) (bvmul (_ bv8 32) .cse3)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) .cse4 .cse5 (bvneg (bvmul (bvmul (_ bv4 32) .cse6) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) .cse7)) (= (bvadd (bvneg .cse7) (bvneg (bvmul .cse6 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) .cse0 .cse1 .cse4 .cse5 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse3)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)))) (_ bv0 32)) (bvult |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv536870911 32)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32)))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:32:34,180 WARN L855 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (let ((.cse6 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse3 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse8))) (let ((.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46|)) (.cse0 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse1 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse4 (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) (.cse5 (bvmul (_ bv8 32) .cse6))) (or (not (= (bvadd .cse0 .cse1 (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse2) (bvmul (_ bv8 32) .cse3)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)) .cse4 .cse5 (bvneg (bvmul (bvmul (_ bv4 32) .cse6) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) .cse7)) (= (bvadd (bvneg .cse7) (bvneg (bvmul .cse6 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|))) .cse0 .cse1 .cse4 .cse5 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse3)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37|)))) (_ bv0 32)) (bvult |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_46| (_ bv536870911 32)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_37| (_ bv2 32)))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-16 16:32:54,278 WARN L855 $PredicateComparison]: unable to prove that (or (not (bvult |c_ULTIMATE.start_main_~n~0#1| (_ bv536870911 32))) (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (let ((.cse8 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse4 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse1 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8))) (let ((.cse2 (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse3))) (.cse0 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (.cse5 (bvmul (_ bv8 32) .cse1)) (.cse6 (bvmul (_ bv4 32) (bvmul .cse4 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse7 (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8))))) (or (not (= .cse0 (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse1))) .cse2 (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse4 (_ bv8 32))))) .cse5 .cse6 .cse7))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv10 32))) (= (_ bv0 32) (bvadd .cse2 (bvneg (bvmul (bvmul |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvadd (bvmul (_ bv4 32) .cse3) (bvmul .cse4 (_ bv4 32))))) (bvneg .cse0) .cse5 .cse6 .cse7 (bvneg (bvmul (bvmul (_ bv4 32) |ULTIMATE.start_main_~a~0#1|) .cse1)))) (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))))))))) is different from true [2022-11-16 16:32:54,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456922073] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:32:54,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:32:54,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 12 [2022-11-16 16:32:54,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505061073] [2022-11-16 16:32:54,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:32:54,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 16:32:54,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:32:54,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 16:32:54,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=210, Unknown=13, NotChecked=520, Total=812 [2022-11-16 16:32:54,282 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-16 16:33:01,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:02,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:04,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:05,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:11,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 16:33:21,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:33:21,407 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2022-11-16 16:33:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 16:33:21,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 39 [2022-11-16 16:33:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:33:21,439 INFO L225 Difference]: With dead ends: 52 [2022-11-16 16:33:21,439 INFO L226 Difference]: Without dead ends: 50 [2022-11-16 16:33:21,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=88, Invalid=293, Unknown=13, NotChecked=598, Total=992 [2022-11-16 16:33:21,441 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 44 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:33:21,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 73 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 24.7s Time] [2022-11-16 16:33:21,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-16 16:33:21,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2022-11-16 16:33:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 12 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-16 16:33:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-16 16:33:21,454 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 39 [2022-11-16 16:33:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:33:21,454 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-16 16:33:21,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-16 16:33:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-16 16:33:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 16:33:21,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:33:21,456 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:33:21,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 16:33:21,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-11-16 16:33:22,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 16:33:22,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:33:22,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:33:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:33:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash -114260771, now seen corresponding path program 1 times [2022-11-16 16:33:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:33:22,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372247768] [2022-11-16 16:33:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:33:22,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 16:33:22,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:33:22,066 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 16:33:22,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/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 (10)] Waiting until timeout for monitored process [2022-11-16 16:33:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:33:22,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 16:33:22,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:33:31,166 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:33:37,215 WARN L233 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:33:42,280 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:33:48,285 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:33:54,402 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:33:56,929 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32))) (let ((.cse0 (bvadd (_ bv4294967294 32) |c_ULTIMATE.start_main_~d~0#1|))) (and (= (bvurem |ULTIMATE.start_main_~n~0#1| .cse0) |c_ULTIMATE.start_main_~k~0#1|) (= (bvadd (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse0)) (bvmul (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|)) (_ bv4 32))) |c_ULTIMATE.start_main_~q~0#1|) (= (bvurem |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|) |c_ULTIMATE.start_main_~r~0#1|) (= |c_ULTIMATE.start_main_~s~0#1| ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|)))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv10 32))))) (bvule |c_ULTIMATE.start_main_~d~0#1| (_ bv10 32)) (bvugt |c_ULTIMATE.start_main_~d~0#1| (_ bv2 32))) is different from false [2022-11-16 16:34:02,965 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:09,005 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:14,065 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:20,204 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:26,231 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:32,451 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:38,582 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:43,695 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:49,816 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:34:55,943 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:02,185 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:08,324 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:13,477 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:19,611 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:25,766 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:31,998 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:38,190 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:43,318 WARN L233 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:49,447 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:35:55,815 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:02,313 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:08,736 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:13,971 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:20,349 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:26,757 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:33,348 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:38,605 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:44,986 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:51,403 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:36:57,811 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:37:04,216 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:37:10,630 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:37:13,200 WARN L833 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 32) |c_ULTIMATE.start_main_~r~0#1|)) (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (and (= |c_ULTIMATE.start_main_~r~0#1| (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|)) (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (= (bvurem |ULTIMATE.start_main_~n~0#1| .cse0) |c_ULTIMATE.start_main_~k~0#1|) (bvule |ULTIMATE.start_main_~d~0#1| (_ bv10 32)) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv10 32)) (= (bvadd (bvmul (bvudiv |ULTIMATE.start_main_~n~0#1| .cse0) (_ bv4 32)) (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|)))) |c_ULTIMATE.start_main_~q~0#1|) (bvugt |ULTIMATE.start_main_~d~0#1| (_ bv2 32)))))) is different from false [2022-11-16 16:37:18,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:37:18,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372247768] [2022-11-16 16:37:18,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: line 39983 column 7: push canceled [2022-11-16 16:37:18,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1710778574] [2022-11-16 16:37:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:37:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:37:18,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:37:18,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:37:18,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58361612-85b5-45b4-8ada-803a195bd554/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-16 16:37:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:37:25,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 16:37:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:37:35,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4