./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f --- 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-6b4ec56 [2022-11-20 09:29:30,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:30,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:30,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:30,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:30,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:30,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:30,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:30,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:30,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:30,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:30,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:30,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:30,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:30,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:30,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:30,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:30,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:30,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:30,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:30,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:30,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:30,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:30,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:30,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:30,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:30,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:30,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:30,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:30,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:30,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:30,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:30,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:30,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:30,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:30,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:30,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:30,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:30,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:30,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:30,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:30,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:29:30,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:30,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:30,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:30,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:30,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:30,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:30,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:30,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:30,172 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:30,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:30,174 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:29:30,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:30,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:29:30,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:30,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:30,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:30,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:30,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:29:30,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:30,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:30,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:30,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:30,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:30,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:30,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:30,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:30,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:30,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:30,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:30,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:30,179 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:30,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:30,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:30,180 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f [2022-11-20 09:29:30,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:30,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:30,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:30,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:30,573 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:30,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2022-11-20 09:29:33,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:33,932 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:33,932 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2022-11-20 09:29:33,939 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/d03fc5ddf/b5d386554df4492fb2c76a89f5433fc1/FLAG632a5b40e [2022-11-20 09:29:33,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/d03fc5ddf/b5d386554df4492fb2c76a89f5433fc1 [2022-11-20 09:29:33,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:33,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:33,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:33,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:33,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:33,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:33" (1/1) ... [2022-11-20 09:29:33,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701db24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:33, skipping insertion in model container [2022-11-20 09:29:33,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:33" (1/1) ... [2022-11-20 09:29:33,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:33,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:34,165 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2022-11-20 09:29:34,194 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:800) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2039) 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:1463) 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:1413) 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:1087) 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:1489) 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:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) 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) [2022-11-20 09:29:34,204 INFO L158 Benchmark]: Toolchain (without parser) took 246.30ms. Allocated memory is still 165.7MB. Free memory was 122.1MB in the beginning and 112.7MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:34,207 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:34,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.05ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 112.7MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:34,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.05ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 112.7MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:800) 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f --- 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-6b4ec56 [2022-11-20 09:29:36,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:36,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:36,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:36,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:36,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:36,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:36,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:36,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:36,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:36,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:36,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:36,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:36,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:36,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:36,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:36,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:36,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:36,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:36,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:36,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:36,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:36,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:36,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:36,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:36,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:36,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:36,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:36,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:36,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:36,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:36,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:36,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:36,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:36,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:36,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:36,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:36,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:36,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:36,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:36,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:36,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 09:29:36,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:36,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:36,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:36,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:36,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:36,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:36,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:36,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:36,598 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:36,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:36,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:29:36,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:29:36,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:36,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:36,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:36,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:36,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:36,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:36,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:36,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:36,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:36,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:36,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:36,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:36,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:36,605 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:36,605 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:36,605 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:36,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:36,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:36,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:36,606 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 725f145f29173a8eb9d341d6c4f743ec9526dd2a9ceaf2d591ceb6d76764d49f [2022-11-20 09:29:37,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:37,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:37,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:37,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:37,087 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:37,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2022-11-20 09:29:40,114 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:40,339 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:40,341 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i [2022-11-20 09:29:40,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/c3795fd8c/7ca8468428e646aaa149bfd087f9a855/FLAG1c632518c [2022-11-20 09:29:40,363 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/data/c3795fd8c/7ca8468428e646aaa149bfd087f9a855 [2022-11-20 09:29:40,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:40,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:40,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:40,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:40,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:40,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554acb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40, skipping insertion in model container [2022-11-20 09:29:40,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:40,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:40,619 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2022-11-20 09:29:40,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:40,707 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:40,734 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_85a0ed65-02dc-4594-994a-4c773c71d2b8/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound100.i[948,961] [2022-11-20 09:29:40,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:40,777 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:40,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40 WrapperNode [2022-11-20 09:29:40,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:40,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:40,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:40,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:40,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,881 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-11-20 09:29:40,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:40,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:40,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:40,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:40,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,947 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:40,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:40,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:40,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:40,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (1/1) ... [2022-11-20 09:29:40,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:40,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:40,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:41,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:41,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:41,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:29:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 09:29:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 09:29:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 09:29:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 09:29:41,142 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:41,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:44,069 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:44,081 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:44,083 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:29:44,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:44 BoogieIcfgContainer [2022-11-20 09:29:44,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:44,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:44,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:44,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:44,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:40" (1/3) ... [2022-11-20 09:29:44,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c0bcef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:44, skipping insertion in model container [2022-11-20 09:29:44,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:40" (2/3) ... [2022-11-20 09:29:44,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c0bcef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:44, skipping insertion in model container [2022-11-20 09:29:44,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:44" (3/3) ... [2022-11-20 09:29:44,100 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_valuebound100.i [2022-11-20 09:29:44,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:44,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:29:44,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:44,186 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=PETRI_NET, 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;@690e42f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:44,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:29:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 09:29:44,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 09:29:44,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:44,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:44,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:44,212 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2022-11-20 09:29:44,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:44,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821823258] [2022-11-20 09:29:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:44,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:44,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:44,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:29:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:44,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 09:29:44,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 09:29:44,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:44,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:44,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821823258] [2022-11-20 09:29:44,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821823258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:44,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:44,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:44,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104832597] [2022-11-20 09:29:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:44,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:29:44,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:44,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:29:44,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:29:44,728 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 09:29:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:44,748 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2022-11-20 09:29:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:29:44,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-11-20 09:29:44,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:44,765 INFO L225 Difference]: With dead ends: 59 [2022-11-20 09:29:44,768 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 09:29:44,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:29:44,776 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:44,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 09:29:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-20 09:29:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 09:29:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-20 09:29:44,825 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2022-11-20 09:29:44,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:44,825 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-20 09:29:44,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 09:29:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-20 09:29:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 09:29:44,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:44,830 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:44,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:45,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:45,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:45,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2022-11-20 09:29:45,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:45,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650711945] [2022-11-20 09:29:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:45,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:29:45,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:45,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:29:45,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:30:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:50,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 09:30:50,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:33,501 WARN L233 SmtUtils]: Spent 10.71s 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) [2022-11-20 09:32:03,791 WARN L233 SmtUtils]: Spent 10.86s 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) [2022-11-20 09:32:18,572 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv100 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0)) (.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse1))) (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv100 32)))) is different from false [2022-11-20 09:32:20,594 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv100 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0)) (.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvmul (_ bv4 32) .cse1))) (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|) (_ bv4 32)) (bvneg (bvmul |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (bvadd (bvmul (_ bv8 32) .cse3) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv100 32)))) is different from true [2022-11-20 09:32:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 09:32:20,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:32:39,042 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 [2022-11-20 09:32:48,432 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 [2022-11-20 09:32:59,062 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 [2022-11-20 09:33:18,506 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 [2022-11-20 09:33:41,973 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))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv100 32))) (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse3 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse3)) (.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)))) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse1)) (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvadd (bvmul (_ bv8 32) .cse1) (bvmul .cse2 (_ bv8 32))))) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse3))))))))) is different from true [2022-11-20 09:33:41,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650711945] [2022-11-20 09:33:41,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650711945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:33:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [350208782] [2022-11-20 09:33:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:41,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 09:33:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 09:33:41,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 09:33:41,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-20 09:35:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:32,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 09:35:32,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 09:36:28,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:50,284 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 [2022-11-20 09:37:09,758 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 [2022-11-20 09:37:30,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [350208782] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:37:30,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:37:30,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2022-11-20 09:37:30,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379268914] [2022-11-20 09:37:30,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:37:30,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 09:37:30,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 09:37:30,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=132, Unknown=13, NotChecked=232, Total=420 [2022-11-20 09:37:30,335 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 09:37:35,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:41,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:44,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:47,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:37:51,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:51,187 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-20 09:37:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:51,212 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2022-11-20 09:37:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:51,213 INFO L225 Difference]: With dead ends: 42 [2022-11-20 09:37:51,213 INFO L226 Difference]: Without dead ends: 40 [2022-11-20 09:37:51,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 69.4s TimeCoverageRelationStatistics Valid=47, Invalid=154, Unknown=13, NotChecked=248, Total=462 [2022-11-20 09:37:51,215 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:37:51,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 98 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 4 Unknown, 80 Unchecked, 20.5s Time] [2022-11-20 09:37:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-20 09:37:51,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2022-11-20 09:37:51,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 9 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 09:37:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2022-11-20 09:37:51,227 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 29 [2022-11-20 09:37:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:51,227 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2022-11-20 09:37:51,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 09:37:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2022-11-20 09:37:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 09:37:51,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:51,229 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:51,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:51,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-20 09:37:51,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 09:37:51,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:37:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash -603494572, now seen corresponding path program 1 times [2022-11-20 09:37:51,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:51,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745361572] [2022-11-20 09:37:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:51,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:51,646 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:51,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/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)] Waiting until timeout for monitored process [2022-11-20 09:37:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:52,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:37:52,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:37:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 09:37:52,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:37:52,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:37:52,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745361572] [2022-11-20 09:37:52,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745361572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:52,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:52,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:37:52,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475975104] [2022-11-20 09:37:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:52,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:37:52,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:37:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:37:52,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:37:52,328 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 09:37:53,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:37:53,520 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2022-11-20 09:37:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:37:53,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2022-11-20 09:37:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:37:53,530 INFO L225 Difference]: With dead ends: 44 [2022-11-20 09:37:53,530 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 09:37:53,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:53,532 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 [2022-11-20 09:37:53,533 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] [2022-11-20 09:37:53,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 09:37:53,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2022-11-20 09:37:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 09:37:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2022-11-20 09:37:53,545 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 34 [2022-11-20 09:37:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:37:53,546 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2022-11-20 09:37:53,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 09:37:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2022-11-20 09:37:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 09:37:53,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:37:53,548 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:53,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/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)] Forceful destruction successful, exit code 0 [2022-11-20 09:37:53,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:53,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:37:53,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:53,762 INFO L85 PathProgramCache]: Analyzing trace with hash -127108025, now seen corresponding path program 1 times [2022-11-20 09:37:53,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:37:53,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974355156] [2022-11-20 09:37:53,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:53,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:37:53,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:37:53,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:37:53,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:38:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:38:58,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 09:38:58,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:39:25,758 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 09:40:23,444 WARN L233 SmtUtils]: Spent 11.01s 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) [2022-11-20 09:41:00,841 WARN L233 SmtUtils]: Spent 11.00s 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) [2022-11-20 09:41:19,880 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| .cse8)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)))) (let ((.cse4 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18|)) (.cse0 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (.cse3 (bvmul (_ bv8 32) .cse1)) (.cse7 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)))) (and (not (= (bvadd .cse0 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|) .cse1)) .cse2 .cse3 (bvneg .cse4) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse5) (bvmul (_ bv4 32) .cse6)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) .cse7) (_ bv0 32))) (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| (_ bv100 32)) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| (_ bv100 32)) (= .cse4 (bvadd (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse5) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) .cse0 .cse2 (bvneg (bvmul (bvmul (_ bv4 32) .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) .cse3 .cse7))))))) is different from false [2022-11-20 09:41:21,910 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) (.cse6 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| .cse8)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)))) (let ((.cse4 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18|)) (.cse0 (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (.cse2 (bvmul (_ bv4 32) (bvmul .cse6 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) (.cse3 (bvmul (_ bv8 32) .cse1)) (.cse7 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)))) (and (not (= (bvadd .cse0 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|) .cse1)) .cse2 .cse3 (bvneg .cse4) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse5) (bvmul (_ bv4 32) .cse6)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|))) .cse7) (_ bv0 32))) (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13| (_ bv100 32)) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_18| (_ bv100 32)) (= .cse4 (bvadd (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse5) (bvmul (_ bv8 32) .cse6)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) .cse0 .cse2 (bvneg (bvmul (bvmul (_ bv4 32) .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_13|)) .cse3 .cse7))))))) is different from true [2022-11-20 09:41:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 09:41:21,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:42:11,507 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 [2022-11-20 09:42:25,561 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 [2022-11-20 09:42:40,447 WARN L859 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| .cse8)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (let ((.cse3 (bvmul (_ bv8 32) .cse0)) (.cse4 (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|) (_ bv4 32))) (.cse5 (bvmul (_ bv4 32) (bvmul .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse6 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21|))) (or (not (= (bvadd (bvneg (bvmul (bvmul (_ bv4 32) .cse0) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|)) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse2)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|)) .cse3 .cse4 .cse5 .cse6) .cse7)) (= (bvadd .cse3 .cse4 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|) .cse0)) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse1)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) .cse5 .cse6 (bvneg .cse7)) (_ bv0 32)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| (_ bv2 32))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-20 09:43:08,751 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_21| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| (_ BitVec 32))) (let ((.cse8 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| .cse8)) (.cse2 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse0 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (let ((.cse3 (bvmul (_ bv8 32) .cse0)) (.cse4 (bvmul (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|) (_ bv4 32))) (.cse5 (bvmul (_ bv4 32) (bvmul .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse6 (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21| .cse8) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) (.cse7 (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_21|))) (or (not (= (bvadd (bvneg (bvmul (bvmul (_ bv4 32) .cse0) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|)) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse2)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|)) .cse3 .cse4 .cse5 .cse6) .cse7)) (= (bvadd .cse3 .cse4 (bvneg (bvmul (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|) .cse0)) (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse2) (bvmul (_ bv4 32) .cse1)) (bvmul (_ bv2 32) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16|))) .cse5 .cse6 (bvneg .cse7)) (_ bv0 32)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_16| (_ bv2 32))))))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2022-11-20 09:43:39,864 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| (_ bv100 32)))))))) is different from true [2022-11-20 09:43:39,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:43:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974355156] [2022-11-20 09:43:39,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974355156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:43:39,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [441306842] [2022-11-20 09:43:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:43:39,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 09:43:39,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 09:43:39,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 09:43:39,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a0ed65-02dc-4594-994a-4c773c71d2b8/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process