./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:22:34,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:22:34,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:22:34,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:22:34,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:22:34,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:22:34,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:22:34,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:22:34,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:22:34,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:22:34,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:22:34,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:22:34,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:22:34,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:22:34,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:22:34,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:22:34,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:22:34,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:22:34,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:22:34,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:22:34,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:22:34,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:22:34,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:22:34,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:22:34,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:22:34,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:22:34,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:22:34,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:22:34,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:22:34,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:22:34,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:22:34,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:22:34,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:22:34,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:22:34,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:22:34,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:22:34,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:22:34,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:22:34,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:22:34,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:22:34,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:22:34,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:22:34,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:22:34,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:22:34,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:22:34,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:22:34,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:22:34,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:22:34,951 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:22:34,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:22:34,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:22:34,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:22:34,952 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:22:34,952 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:22:34,953 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:22:34,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:22:34,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:22:34,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:22:34,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:22:34,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:22:34,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:22:34,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:22:34,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:22:34,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:22:34,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:22:34,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:22:34,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:22:34,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:22:34,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:22:34,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:22:34,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:22:34,956 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_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2022-12-14 07:22:35,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:22:35,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:22:35,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:22:35,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:22:35,148 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:22:35,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2022-12-14 07:22:37,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:22:37,831 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:22:37,831 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2022-12-14 07:22:37,836 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/00b064dc4/9aaea9e302df4e43b0601285e92d2bbf/FLAGe72483c11 [2022-12-14 07:22:38,232 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/00b064dc4/9aaea9e302df4e43b0601285e92d2bbf [2022-12-14 07:22:38,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:22:38,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:22:38,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:22:38,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:22:38,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:22:38,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:38" (1/1) ... [2022-12-14 07:22:38,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a07cdff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:38, skipping insertion in model container [2022-12-14 07:22:38,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:38" (1/1) ... [2022-12-14 07:22:38,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:22:38,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:22:38,389 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2022-12-14 07:22:38,401 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:806) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2063) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) 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:728) 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:1420) 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:1094) 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:1496) 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:3320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2395) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) 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) [2022-12-14 07:22:38,405 INFO L158 Benchmark]: Toolchain (without parser) took 169.79ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.0MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:22:38,406 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:22:38,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.33ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.0MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:22:38,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.33ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.0MB in the end (delta: 8.7MB). 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:806) 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_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:22:39,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:22:39,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:22:39,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:22:39,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:22:39,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:22:39,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:22:39,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:22:39,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:22:39,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:22:39,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:22:39,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:22:39,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:22:39,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:22:39,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:22:39,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:22:39,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:22:39,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:22:39,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:22:39,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:22:39,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:22:39,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:22:39,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:22:39,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:22:39,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:22:39,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:22:39,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:22:39,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:22:39,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:22:39,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:22:39,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:22:39,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:22:39,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:22:39,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:22:39,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:22:39,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:22:39,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:22:39,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:22:39,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:22:39,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:22:39,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:22:39,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 07:22:39,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:22:39,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:22:39,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:22:39,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:22:39,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:22:39,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:22:39,890 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:22:39,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:22:39,890 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:22:39,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:22:39,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:22:39,891 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:22:39,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:22:39,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:22:39,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:22:39,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:22:39,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:22:39,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:22:39,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:22:39,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:22:39,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:22:39,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:22:39,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:22:39,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:22:39,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:22:39,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:22:39,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:22:39,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:22:39,902 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_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2022-12-14 07:22:40,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:22:40,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:22:40,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:22:40,130 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:22:40,130 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:22:40,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2022-12-14 07:22:42,637 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:22:42,811 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:22:42,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2022-12-14 07:22:42,816 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/28897d0a9/0feb3600df3a4272b7b0dee3a1b12b6a/FLAGaaafad502 [2022-12-14 07:22:43,204 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/data/28897d0a9/0feb3600df3a4272b7b0dee3a1b12b6a [2022-12-14 07:22:43,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:22:43,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:22:43,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:22:43,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:22:43,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:22:43,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d820020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43, skipping insertion in model container [2022-12-14 07:22:43,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:22:43,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:22:43,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2022-12-14 07:22:43,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:22:43,356 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:22:43,365 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2022-12-14 07:22:43,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:22:43,386 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:22:43,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43 WrapperNode [2022-12-14 07:22:43,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:22:43,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:22:43,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:22:43,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:22:43,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,430 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-12-14 07:22:43,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:22:43,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:22:43,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:22:43,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:22:43,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:22:43,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:22:43,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:22:43,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:22:43,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (1/1) ... [2022-12-14 07:22:43,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:22:43,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:43,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:22:43,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:22:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:22:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:22:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:22:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:22:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:22:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:22:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 07:22:43,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 07:22:43,583 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:22:43,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:22:46,340 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:22:46,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:22:46,345 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:22:46,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:22:46 BoogieIcfgContainer [2022-12-14 07:22:46,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:22:46,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:22:46,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:22:46,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:22:46,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:22:43" (1/3) ... [2022-12-14 07:22:46,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540d743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:22:46, skipping insertion in model container [2022-12-14 07:22:46,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:43" (2/3) ... [2022-12-14 07:22:46,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540d743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:22:46, skipping insertion in model container [2022-12-14 07:22:46,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:22:46" (3/3) ... [2022-12-14 07:22:46,352 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_valuebound20.i [2022-12-14 07:22:46,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:22:46,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:22:46,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:22:46,404 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;@554a2a9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:22:46,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:22:46,407 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) [2022-12-14 07:22:46,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 07:22:46,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:46,414 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] [2022-12-14 07:22:46,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:22:46,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:46,418 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2022-12-14 07:22:46,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:22:46,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751282533] [2022-12-14 07:22:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:46,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:22:46,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:22:46,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:22:46,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 07:22:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:46,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 07:22:46,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 07:22:46,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:22:46,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:22:46,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751282533] [2022-12-14 07:22:46,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751282533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:46,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:22:46,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:22:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758739035] [2022-12-14 07:22:46,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:46,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:22:46,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:22:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:22:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:22:46,810 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) [2022-12-14 07:22:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:46,826 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2022-12-14 07:22:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:22:46,827 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 [2022-12-14 07:22:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:46,832 INFO L225 Difference]: With dead ends: 59 [2022-12-14 07:22:46,833 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 07:22:46,835 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 [2022-12-14 07:22:46,837 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 [2022-12-14 07:22:46,838 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] [2022-12-14 07:22:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 07:22:46,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 07:22:46,861 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) [2022-12-14 07:22:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-12-14 07:22:46,863 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2022-12-14 07:22:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:46,863 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-12-14 07:22:46,863 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) [2022-12-14 07:22:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-12-14 07:22:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 07:22:46,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:46,865 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] [2022-12-14 07:22:46,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:22:47,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:22:47,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:22:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2022-12-14 07:22:47,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:22:47,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572858077] [2022-12-14 07:22:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:47,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:22:47,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:22:47,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:22:47,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 07:22:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:49,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 07:22:49,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:23:26,304 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 42 DAG size of output: 3 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:23:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 07:23:26,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:23:37,635 WARN L859 $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 [2022-12-14 07:23:46,918 WARN L859 $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 [2022-12-14 07:23:57,389 WARN L859 $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 [2022-12-14 07:24:16,370 WARN L859 $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 [2022-12-14 07:24:38,945 WARN L859 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (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))))))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv20 32))))) is different from true [2022-12-14 07:24:38,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:24:38,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572858077] [2022-12-14 07:24:38,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572858077] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:24:38,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [194711496] [2022-12-14 07:24:38,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:24:38,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:24:38,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:24:38,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:24:38,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 07:24:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:24:49,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 07:24:49,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:25:34,862 WARN L233 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:26:08,425 WARN L233 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:26:23,146 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| (_ bv20 32)) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2| (_ bv20 32)) (not (= (let ((.cse3 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|))) (let ((.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|)) (.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| .cse3)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|)))) (bvadd (bvneg (bvmul (bvmul (_ bv4 32) .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|)) (bvmul (_ bv4 32) (bvmul .cse1 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|)) (bvmul (_ bv8 32) .cse0) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul .cse2 (_ bv8 32))))) (bvmul (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10| .cse3) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|) (_ bv4 32)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_2|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_10|))))) is different from false [2022-12-14 07:26:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 07:26:24,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:26:45,245 WARN L859 $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 [2022-12-14 07:27:04,418 WARN L859 $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 [2022-12-14 07:27:24,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [194711496] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:27:24,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839271324] [2022-12-14 07:27:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:27:24,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:27:24,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:27:24,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:27:24,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:27:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:27:30,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 07:27:30,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:28:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 07:28:32,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:28:32,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839271324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:28:32,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:28:32,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 13 [2022-12-14 07:28:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382820535] [2022-12-14 07:28:32,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:28:32,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 07:28:32,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:28:32,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 07:28:32,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=177, Unknown=14, NotChecked=264, Total=506 [2022-12-14 07:28:32,111 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2022-12-14 07:28:36,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 07:28:38,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 07:29:21,655 WARN L233 SmtUtils]: Spent 27.40s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:29:24,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:27,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:31,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:34,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:39,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 07:29:41,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 07:29:44,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:44,912 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2022-12-14 07:29:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:29:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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 [2022-12-14 07:29:44,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:44,941 INFO L225 Difference]: With dead ends: 44 [2022-12-14 07:29:44,941 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 07:29:44,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 132.0s TimeCoverageRelationStatistics Valid=59, Invalid=225, Unknown=20, NotChecked=296, Total=600 [2022-12-14 07:29:44,942 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 26 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 5 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:44,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 107 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 166 Invalid, 6 Unknown, 26 Unchecked, 29.7s Time] [2022-12-14 07:29:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 07:29:44,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2022-12-14 07:29:44,951 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) [2022-12-14 07:29:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-12-14 07:29:44,952 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 29 [2022-12-14 07:29:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:44,952 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-12-14 07:29:44,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2022-12-14 07:29:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-12-14 07:29:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 07:29:44,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:44,953 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] [2022-12-14 07:29:45,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 07:29:45,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 07:29:45,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:29:45,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:29:45,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:29:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -603494572, now seen corresponding path program 1 times [2022-12-14 07:29:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:29:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103519686] [2022-12-14 07:29:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:45,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:29:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:29:45,557 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:29:45,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 07:29:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:45,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:29:45,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:29:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 07:29:46,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:29:46,263 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:29:46,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103519686] [2022-12-14 07:29:46,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103519686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:29:46,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:29:46,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:29:46,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833219056] [2022-12-14 07:29:46,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:29:46,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:29:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:29:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:29:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:29:46,266 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) [2022-12-14 07:29:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:29:47,500 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-12-14 07:29:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:29:47,508 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 [2022-12-14 07:29:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:29:47,509 INFO L225 Difference]: With dead ends: 46 [2022-12-14 07:29:47,509 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 07:29:47,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:29:47,510 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:29:47,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 135 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:29:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 07:29:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2022-12-14 07:29:47,521 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) [2022-12-14 07:29:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-12-14 07:29:47,523 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 34 [2022-12-14 07:29:47,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:29:47,523 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-12-14 07:29:47,523 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) [2022-12-14 07:29:47,524 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-12-14 07:29:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 07:29:47,525 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:29:47,525 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] [2022-12-14 07:29:47,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 07:29:47,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:29:47,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:29:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:29:47,728 INFO L85 PathProgramCache]: Analyzing trace with hash -127108025, now seen corresponding path program 1 times [2022-12-14 07:29:47,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:29:47,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649418535] [2022-12-14 07:29:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:29:47,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:29:47,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:29:47,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:29:47,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 07:29:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:29:50,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 07:29:50,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:12,120 WARN L233 SmtUtils]: Spent 11.02s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:31:47,581 WARN L233 SmtUtils]: Spent 10.94s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:32:06,670 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (let ((.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (.cse7 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| .cse8))) (let ((.cse0 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22|)) (.cse1 (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|) (_ bv4 32))) (.cse4 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (.cse5 (bvmul (_ bv8 32) .cse7)) (.cse6 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| (_ bv20 32)) (= .cse0 (bvadd .cse1 (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (bvadd (bvmul (_ bv8 32) .cse2) (bvmul (_ bv8 32) .cse3)))) .cse4 .cse5 .cse6 (bvneg (bvmul (bvmul (_ bv4 32) .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)))) (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (_ bv20 32)) (not (= (_ bv0 32) (bvadd (bvneg .cse0) .cse1 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse3)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) .cse4 .cse5 (bvneg (bvmul .cse7 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) .cse6)))))))) is different from false [2022-12-14 07:32:08,693 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (let ((.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (.cse7 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| .cse8))) (let ((.cse0 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22|)) (.cse1 (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|) (_ bv4 32))) (.cse4 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) (.cse5 (bvmul (_ bv8 32) .cse7)) (.cse6 (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_22| (_ bv20 32)) (= .cse0 (bvadd .cse1 (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (bvadd (bvmul (_ bv8 32) .cse2) (bvmul (_ bv8 32) .cse3)))) .cse4 .cse5 .cse6 (bvneg (bvmul (bvmul (_ bv4 32) .cse7) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|)))) (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15| (_ bv20 32)) (not (= (_ bv0 32) (bvadd (bvneg .cse0) .cse1 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse3)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) .cse4 .cse5 (bvneg (bvmul .cse7 (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_15|))) .cse6)))))))) is different from true [2022-12-14 07:32:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:32:08,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:33:03,830 WARN L859 $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 [2022-12-14 07:33:17,388 WARN L859 $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 [2022-12-14 07:33:32,310 WARN L859 $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 [2022-12-14 07:34:00,221 WARN L859 $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 [2022-12-14 07:34:30,954 WARN L859 $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))) (= (_ 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))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv20 32)))))))) is different from true [2022-12-14 07:34:30,955 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:34:30,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649418535] [2022-12-14 07:34:30,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649418535] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:34:30,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1419379625] [2022-12-14 07:34:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:34:30,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 07:34:30,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 07:34:30,957 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 07:34:30,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-12-14 07:34:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:34:40,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 07:34:40,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:36:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 07:36:11,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:36:50,690 WARN L859 $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 [2022-12-14 07:37:18,468 WARN L859 $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 [2022-12-14 07:37:46,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1419379625] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:37:46,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411323958] [2022-12-14 07:37:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:37:46,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:37:46,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:37:46,777 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:37:46,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0d7da5c-9e42-4ed9-b70a-d3794607c913/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:37:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:37:52,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 07:37:52,964 INFO L286 TraceCheckSpWp]: Computing forward predicates...