./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8 --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 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:41:34,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:41:34,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:41:34,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:41:34,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:41:34,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:41:34,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:41:34,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:41:34,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:41:34,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:41:34,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:41:34,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:41:34,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:41:34,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:41:34,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:41:34,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:41:34,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:41:34,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:41:34,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:41:34,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:41:34,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:41:34,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:41:34,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:41:34,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:41:34,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:41:34,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:41:34,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:41:34,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:41:34,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:41:34,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:41:34,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:41:34,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:41:34,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:41:34,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:41:34,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:41:34,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:41:34,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:41:34,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:41:34,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:41:34,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:41:34,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:41:34,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:41:34,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:41:34,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:41:34,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:41:34,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:41:34,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:41:34,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:41:34,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:41:34,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:41:34,829 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:41:34,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:41:34,829 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:41:34,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:41:34,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:41:34,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:41:34,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:41:34,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:41:34,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:41:34,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:41:34,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:41:34,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:41:34,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:41:34,833 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:41:34,833 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d [2022-12-13 15:41:34,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:41:35,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:41:35,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:41:35,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:41:35,017 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:41:35,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2022-12-13 15:41:37,558 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:41:37,702 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:41:37,703 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2022-12-13 15:41:37,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/e0f4c61b6/6c44d2b1650345ada1b971dba2d7dd74/FLAG16db91817 [2022-12-13 15:41:38,130 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/e0f4c61b6/6c44d2b1650345ada1b971dba2d7dd74 [2022-12-13 15:41:38,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:41:38,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:41:38,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:41:38,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:41:38,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:41:38,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fbb63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38, skipping insertion in model container [2022-12-13 15:41:38,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:41:38,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:41:38,255 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c[712,725] [2022-12-13 15:41:38,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:41:38,271 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:41:38,279 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c[712,725] [2022-12-13 15:41:38,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:41:38,294 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:41:38,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38 WrapperNode [2022-12-13 15:41:38,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:41:38,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:41:38,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:41:38,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:41:38,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,316 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2022-12-13 15:41:38,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:41:38,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:41:38,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:41:38,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:41:38,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:41:38,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:41:38,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:41:38,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:41:38,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (1/1) ... [2022-12-13 15:41:38,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:41:38,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:41:38,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:41:38,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:41:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:41:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:41:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:41:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:41:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:41:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:41:38,449 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:41:38,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:41:38,516 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:41:38,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:41:38,520 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:41:38,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:38 BoogieIcfgContainer [2022-12-13 15:41:38,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:41:38,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:41:38,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:41:38,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:41:38,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:41:38" (1/3) ... [2022-12-13 15:41:38,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a27dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:38, skipping insertion in model container [2022-12-13 15:41:38,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:38" (2/3) ... [2022-12-13 15:41:38,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a27dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:38, skipping insertion in model container [2022-12-13 15:41:38,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:38" (3/3) ... [2022-12-13 15:41:38,528 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound100.c [2022-12-13 15:41:38,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:41:38,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:41:38,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:41:38,580 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;@51581bbe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:41:38,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:41:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:41:38,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 15:41:38,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:41:38,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:41:38,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:41:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:41:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -589467074, now seen corresponding path program 1 times [2022-12-13 15:41:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:41:38,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603611736] [2022-12-13 15:41:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:41:38,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:41:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:41:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:41:38,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:41:38,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603611736] [2022-12-13 15:41:38,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603611736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:41:38,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:41:38,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:41:38,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758285621] [2022-12-13 15:41:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:41:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:41:38,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:41:38,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:41:38,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:41:38,739 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:41:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:41:38,759 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-12-13 15:41:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:41:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 15:41:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:41:38,767 INFO L225 Difference]: With dead ends: 33 [2022-12-13 15:41:38,767 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:41:38,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:41:38,773 INFO L413 NwaCegarLoop]: 19 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, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:41:38,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:41:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:41:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:41:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:41:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 15:41:38,802 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2022-12-13 15:41:38,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:41:38,802 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 15:41:38,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:41:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 15:41:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 15:41:38,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:41:38,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:41:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:41:38,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:41:38,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:41:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1187327748, now seen corresponding path program 1 times [2022-12-13 15:41:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:41:38,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783876338] [2022-12-13 15:41:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:41:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:41:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:41:38,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:41:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:41:38,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:41:38,851 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:41:38,852 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 15:41:38,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:41:38,858 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:41:38,861 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:41:38,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:41:38 BoogieIcfgContainer [2022-12-13 15:41:38,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:41:38,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:41:38,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:41:38,879 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:41:38,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:38" (3/4) ... [2022-12-13 15:41:38,882 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:41:38,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:41:38,883 INFO L158 Benchmark]: Toolchain (without parser) took 750.31ms. Allocated memory is still 134.2MB. Free memory was 101.4MB in the beginning and 54.3MB in the end (delta: 47.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-13 15:41:38,883 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:41:38,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.58ms. Allocated memory is still 134.2MB. Free memory was 100.9MB in the beginning and 90.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:41:38,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.08ms. Allocated memory is still 134.2MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:41:38,884 INFO L158 Benchmark]: Boogie Preprocessor took 19.57ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:41:38,885 INFO L158 Benchmark]: RCFGBuilder took 185.12ms. Allocated memory is still 134.2MB. Free memory was 88.3MB in the beginning and 78.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 15:41:38,885 INFO L158 Benchmark]: TraceAbstraction took 354.25ms. Allocated memory is still 134.2MB. Free memory was 77.9MB in the beginning and 54.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 15:41:38,885 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 134.2MB. Free memory was 54.8MB in the beginning and 54.3MB in the end (delta: 473.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:41:38,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.58ms. Allocated memory is still 134.2MB. Free memory was 100.9MB in the beginning and 90.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.08ms. Allocated memory is still 134.2MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.57ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 88.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.12ms. Allocated memory is still 134.2MB. Free memory was 88.3MB in the beginning and 78.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 354.25ms. Allocated memory is still 134.2MB. Free memory was 77.9MB in the beginning and 54.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 134.2MB. Free memory was 54.8MB in the beginning and 54.3MB in the end (delta: 473.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29. Possible FailurePath: [L25] int r; [L26] double a, x; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=100) [L14] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(a>=0 && a<=100) [L29] x = a / 2.0 [L30] r = 0 VAL [r=0] [L32] COND TRUE 1 VAL [r=0] [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L19] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 19 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 15:41:38,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8 --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 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:41:40,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:41:40,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:41:40,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:41:40,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:41:40,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:41:40,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:41:40,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:41:40,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:41:40,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:41:40,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:41:40,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:41:40,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:41:40,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:41:40,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:41:40,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:41:40,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:41:40,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:41:40,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:41:40,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:41:40,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:41:40,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:41:40,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:41:40,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:41:40,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:41:40,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:41:40,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:41:40,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:41:40,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:41:40,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:41:40,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:41:40,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:41:40,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:41:40,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:41:40,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:41:40,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:41:40,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:41:40,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:41:40,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:41:40,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:41:40,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:41:40,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 15:41:40,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:41:40,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:41:40,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:41:40,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:41:40,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:41:40,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:41:40,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:41:40,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:41:40,484 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:41:40,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:41:40,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:41:40,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:41:40,485 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:41:40,486 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:41:40,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:41:40,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:41:40,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:41:40,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:41:40,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:41:40,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:41:40,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:41:40,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:41:40,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:41:40,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:41:40,489 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:41:40,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:41:40,489 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:41:40,489 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:41:40,489 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d [2022-12-13 15:41:40,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:41:40,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:41:40,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:41:40,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:41:40,753 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:41:40,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2022-12-13 15:41:43,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:41:43,433 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:41:43,434 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2022-12-13 15:41:43,439 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/b0cd92a4e/4d0d9f2c32c74dc29f56407e8ecf1b5b/FLAG792f72d69 [2022-12-13 15:41:43,845 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/data/b0cd92a4e/4d0d9f2c32c74dc29f56407e8ecf1b5b [2022-12-13 15:41:43,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:41:43,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:41:43,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:41:43,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:41:43,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:41:43,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:43" (1/1) ... [2022-12-13 15:41:43,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58957ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:43, skipping insertion in model container [2022-12-13 15:41:43,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:41:43" (1/1) ... [2022-12-13 15:41:43,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:41:43,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:41:43,968 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c[712,725] [2022-12-13 15:41:43,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:41:43,986 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:41:43,998 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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c[712,725] [2022-12-13 15:41:44,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:41:44,016 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:41:44,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44 WrapperNode [2022-12-13 15:41:44,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:41:44,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:41:44,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:41:44,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:41:44,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,048 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-12-13 15:41:44,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:41:44,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:41:44,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:41:44,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:41:44,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:41:44,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:41:44,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:41:44,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:41:44,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (1/1) ... [2022-12-13 15:41:44,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:41:44,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:41:44,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:41:44,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:41:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:41:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:41:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:41:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:41:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:41:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:41:44,188 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:41:44,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:41:44,808 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:41:44,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:41:44,813 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:41:44,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:44 BoogieIcfgContainer [2022-12-13 15:41:44,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:41:44,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:41:44,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:41:44,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:41:44,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:41:43" (1/3) ... [2022-12-13 15:41:44,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be04e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:44, skipping insertion in model container [2022-12-13 15:41:44,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:41:44" (2/3) ... [2022-12-13 15:41:44,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be04e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:41:44, skipping insertion in model container [2022-12-13 15:41:44,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:41:44" (3/3) ... [2022-12-13 15:41:44,824 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound100.c [2022-12-13 15:41:44,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:41:44,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:41:44,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:41:44,882 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;@46beecad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:41:44,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:41:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:41:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 15:41:44,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:41:44,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:41:44,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:41:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:41:44,896 INFO L85 PathProgramCache]: Analyzing trace with hash -589467074, now seen corresponding path program 1 times [2022-12-13 15:41:44,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:41:44,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386325234] [2022-12-13 15:41:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:41:44,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:41:44,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:41:44,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:41:44,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 15:41:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:41:45,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:41:45,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:41:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:41:45,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:41:45,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:41:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386325234] [2022-12-13 15:41:45,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386325234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:41:45,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:41:45,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:41:45,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128557527] [2022-12-13 15:41:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:41:45,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:41:45,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:41:45,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:41:45,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:41:45,304 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:41:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:41:45,317 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-12-13 15:41:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:41:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 15:41:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:41:45,323 INFO L225 Difference]: With dead ends: 33 [2022-12-13 15:41:45,323 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:41:45,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:41:45,327 INFO L413 NwaCegarLoop]: 19 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, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:41:45,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:41:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:41:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:41:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:41:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 15:41:45,351 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2022-12-13 15:41:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:41:45,351 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 15:41:45,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:41:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 15:41:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 15:41:45,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:41:45,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:41:45,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:41:45,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:41:45,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:41:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:41:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1187327748, now seen corresponding path program 1 times [2022-12-13 15:41:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:41:45,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596937639] [2022-12-13 15:41:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:41:45,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:41:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:41:45,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:41:45,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 15:41:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:41:45,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:41:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:41:46,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Invalid model [2022-12-13 15:41:46,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [992510302] [2022-12-13 15:41:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:41:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 15:41:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 15:41:46,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 15:41:46,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-13 15:41:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:41:47,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:41:47,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:42:16,412 WARN L837 $PredicateComparison]: unable to prove that (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32)))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))) is different from false [2022-12-13 15:42:32,918 WARN L837 $PredicateComparison]: unable to prove that (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32)))))) (= (_ bv0 32) c___VERIFIER_assert_~cond)) (= (_ bv1 32) c___VERIFIER_assert_~cond)) is different from false [2022-12-13 15:42:47,895 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32)))))) is different from false [2022-12-13 15:42:49,922 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32)))))) is different from true [2022-12-13 15:42:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:42:49,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:42:49,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:42:49,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596937639] [2022-12-13 15:42:49,924 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:42:49,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [992510302] [2022-12-13 15:42:49,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [992510302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:42:49,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:42:49,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:42:49,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295512689] [2022-12-13 15:42:49,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:42:49,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:42:49,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:42:49,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:42:49,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=4, NotChecked=30, Total=72 [2022-12-13 15:42:49,927 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:42:51,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:03,540 WARN L233 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 28 DAG size of output: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:43:05,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:07,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:09,544 WARN L837 $PredicateComparison]: unable to prove that (and (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1|) .cse0) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) (_ bv0 32))) (fp.geq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| .cse0) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32)))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-13 15:43:11,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:14,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:16,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:18,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:43:19,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:43:19,916 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-12-13 15:43:19,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:43:19,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 15:43:19,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:43:19,935 INFO L225 Difference]: With dead ends: 30 [2022-12-13 15:43:19,935 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 15:43:19,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=33, Invalid=34, Unknown=5, NotChecked=60, Total=132 [2022-12-13 15:43:19,936 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:43:19,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 52 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 4 Unknown, 61 Unchecked, 15.4s Time] [2022-12-13 15:43:19,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 15:43:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-12-13 15:43:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:43:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-12-13 15:43:19,943 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2022-12-13 15:43:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:43:19,943 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-12-13 15:43:19,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:43:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-12-13 15:43:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 15:43:19,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:43:19,944 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:43:19,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 15:43:20,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-12-13 15:43:20,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/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_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 15:43:20,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:43:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:43:20,349 INFO L85 PathProgramCache]: Analyzing trace with hash -713464030, now seen corresponding path program 1 times [2022-12-13 15:43:20,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:43:20,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489385332] [2022-12-13 15:43:20,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:43:20,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:43:20,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:43:20,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:43:20,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 15:43:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:43:20,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:43:20,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:43:26,951 WARN L837 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from false [2022-12-13 15:43:29,011 WARN L859 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from true [2022-12-13 15:43:41,376 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2|) ((_ to_fp 11 53) currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2|))) (_ bv0 32))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))) is different from false [2022-12-13 15:43:49,631 WARN L837 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2|) ((_ to_fp 11 53) currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2|))) (_ bv0 32)))) is different from false [2022-12-13 15:43:49,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-12-13 15:43:49,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:44:14,398 WARN L233 SmtUtils]: Spent 16.43s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:44:30,854 WARN L233 SmtUtils]: Spent 16.46s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:44:37,054 WARN L859 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) is different from true [2022-12-13 15:44:47,390 WARN L859 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) (= (_ bv0 32) c___VERIFIER_assert_~cond) (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) is different from true [2022-12-13 15:44:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-12-13 15:44:47,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:47,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489385332] [2022-12-13 15:44:47,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489385332] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:44:47,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:44:47,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-12-13 15:44:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589522640] [2022-12-13 15:44:47,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:44:47,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:44:47,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:44:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=17, Unknown=6, NotChecked=50, Total=90 [2022-12-13 15:44:47,395 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 15:44:49,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:44:51,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:44:53,662 WARN L859 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) (= (_ bv0 32) c___VERIFIER_assert_~cond) (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))))) is different from true [2022-12-13 15:44:55,725 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))))) (and (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) .cse0) .cse0)) is different from true [2022-12-13 15:44:57,788 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2|) ((_ to_fp 11 53) currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2|))) (_ bv0 32))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32)) (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) is different from false [2022-12-13 15:44:59,854 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (= (_ bv1 32) c___VERIFIER_assert_~cond) (not .cse0) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2|) ((_ to_fp 11 53) currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2|))) (_ bv0 32))) (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) .cse0 (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))))) is different from false [2022-12-13 15:45:01,917 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (= (_ bv1 32) c___VERIFIER_assert_~cond) (not .cse0) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_2|) ((_ to_fp 11 53) currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_2|)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_2|))) (_ bv0 32))) (or (forall ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|) ((_ to_fp 11 53) c_currentRoundingMode |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_3|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_3|))) (_ bv0 32))) .cse0 (not (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))))) is different from true [2022-12-13 15:45:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:45:01,919 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-12-13 15:45:01,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:45:01,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-12-13 15:45:01,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:45:01,920 INFO L225 Difference]: With dead ends: 32 [2022-12-13 15:45:01,920 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 15:45:01,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=25, Invalid=20, Unknown=11, NotChecked=126, Total=182 [2022-12-13 15:45:01,921 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:45:01,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 2 Unknown, 40 Unchecked, 4.2s Time] [2022-12-13 15:45:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 15:45:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 15:45:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:45:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-12-13 15:45:01,926 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 15 [2022-12-13 15:45:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:45:01,927 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-12-13 15:45:01,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 15:45:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-12-13 15:45:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 15:45:01,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:45:01,928 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:45:01,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 15:45:02,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:45:02,130 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:45:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:45:02,131 INFO L85 PathProgramCache]: Analyzing trace with hash -610823942, now seen corresponding path program 1 times [2022-12-13 15:45:02,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:45:02,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030755183] [2022-12-13 15:45:02,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:45:02,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:45:02,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:45:02,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:45:02,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 15:45:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:45:02,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:45:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:45:03,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Invalid model [2022-12-13 15:45:03,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1399296337] [2022-12-13 15:45:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:45:03,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 15:45:03,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 15:45:03,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 15:45:03,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-13 15:45:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:45:07,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 15:45:07,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:45:44,072 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:46:19,456 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse0 .cse1)))) (_ bv0 32))))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse6 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse6 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse6 .cse1)))) (_ bv0 32)))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))))) is different from false [2022-12-13 15:46:50,952 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (and (= (_ bv1 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse0 .cse1)))) (_ bv0 32)))))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse6 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse6 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse6 .cse1)))) (_ bv0 32)))))) (= (_ bv0 32) c___VERIFIER_assert_~cond)))) is different from false [2022-12-13 15:47:07,623 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.gt .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse2)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.sub roundNearestTiesToEven .cse0 .cse1)))) (_ bv0 32)))))) is different from false [2022-12-13 15:47:09,665 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (fp.gt .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse2)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.sub roundNearestTiesToEven .cse0 .cse1)))) (_ bv0 32)))))) is different from true [2022-12-13 15:47:09,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-13 15:47:09,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:47:19,318 WARN L837 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from false [2022-12-13 15:47:21,376 WARN L859 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from true [2022-12-13 15:47:36,120 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) is different from false [2022-12-13 15:47:38,206 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) is different from true [2022-12-13 15:48:05,670 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1))))))) is different from false [2022-12-13 15:48:07,731 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1))))))) is different from true [2022-12-13 15:48:21,249 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) is different from false [2022-12-13 15:48:23,312 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) is different from true [2022-12-13 15:48:40,177 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~a~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_~a~0#1_11|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) is different from false [2022-12-13 15:48:42,246 WARN L859 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~a~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_~a~0#1_11|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) is different from true [2022-12-13 15:48:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-13 15:48:42,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:48:42,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030755183] [2022-12-13 15:48:42,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:48:42,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1399296337] [2022-12-13 15:48:42,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1399296337] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:48:42,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:48:42,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 17 [2022-12-13 15:48:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707024512] [2022-12-13 15:48:42,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:48:42,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 15:48:42,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:48:42,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 15:48:42,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=14, NotChecked=168, Total=272 [2022-12-13 15:48:42,250 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:48:44,315 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~a~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_~a~0#1_11|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-13 15:48:46,388 WARN L859 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~a~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |v_ULTIMATE.start_main_~a~0#1_11|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-13 15:48:48,463 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (and (let ((.cse1 (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (.cse0 (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse3))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) .cse2))) (let ((.cse4 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.gt .cse4 .cse3)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse5 |c_ULTIMATE.start_main_~a~0#1|) .cse5)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse4 .cse3))))) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:48:50,526 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (and (let ((.cse1 (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (.cse0 (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse3))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) .cse2))) (let ((.cse4 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.gt .cse4 .cse3)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse5 |c_ULTIMATE.start_main_~a~0#1|) .cse5)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse4 .cse3))))) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:48:52,597 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse0) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.gt .cse1 .cse0)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse1 .cse0))))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:48:54,664 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse0) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (let ((.cse1 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.gt .cse1 .cse0)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~a~0#1|) .cse2)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse1 .cse0))))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:48:58,483 WARN L859 $PredicateComparison]: unable to prove that (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= |c_ULTIMATE.start_main_~x~0#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv0 32) |c_ULTIMATE.start_main_~r~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-13 15:49:00,628 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (= |c_ULTIMATE.start_main_~x~0#1| (fp.sub c_currentRoundingMode .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) (fp.gt .cse0 .cse1) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:49:02,716 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (= |c_ULTIMATE.start_main_~x~0#1| (fp.sub c_currentRoundingMode .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) (fp.gt .cse0 .cse1) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:49:04,791 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (and (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse0 .cse1)))) (_ bv0 32))))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse6 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse5))) (and (fp.gt .cse6 .cse1) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse2) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse3 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse3) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse6 .cse1)))) (_ bv0 32)))))) .cse7))) (not .cse7))) is different from false [2022-12-13 15:49:06,874 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (and (not .cse0) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (and (= (_ bv1 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse6))) (and (fp.gt .cse1 .cse2) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse3) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse4) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven .cse1 .cse2)))) (_ bv0 32)))))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse6))) (and (fp.gt .cse7 .cse2) (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| .cse3) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse4 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|) .cse4) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven .cse7 .cse2)))) (_ bv0 32)))))) .cse0))))) is different from false [2022-12-13 15:49:09,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:49:11,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:49:13,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:49:15,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:49:17,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:49:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:49:17,667 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-12-13 15:49:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:49:17,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-12-13 15:49:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:49:17,668 INFO L225 Difference]: With dead ends: 28 [2022-12-13 15:49:17,668 INFO L226 Difference]: Without dead ends: 26 [2022-12-13 15:49:17,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.0s TimeCoverageRelationStatistics Valid=55, Invalid=70, Unknown=25, NotChecked=450, Total=600 [2022-12-13 15:49:17,670 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:49:17,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 5 Unknown, 115 Unchecked, 10.8s Time] [2022-12-13 15:49:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-13 15:49:17,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-13 15:49:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:49:17,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-12-13 15:49:17,678 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 16 [2022-12-13 15:49:17,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:49:17,679 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-12-13 15:49:17,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 15 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:49:17,679 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-12-13 15:49:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 15:49:17,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:49:17,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:49:17,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-13 15:49:17,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 15:49:18,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:49:18,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:49:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:49:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1159254460, now seen corresponding path program 2 times [2022-12-13 15:49:18,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:49:18,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577370687] [2022-12-13 15:49:18,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:49:18,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:49:18,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:49:18,088 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:49:18,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 15:49:19,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:49:19,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 15:49:19,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:49:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:49:20,315 ERROR L245 FreeRefinementEngine]: Caught known exception: Invalid model [2022-12-13 15:49:20,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1579297048] [2022-12-13 15:49:20,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:49:20,316 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 15:49:20,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 15:49:20,317 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 15:49:20,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-12-13 15:49:26,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:49:26,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:49:26,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 15:49:26,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:50:19,384 WARN L233 SmtUtils]: Spent 12.28s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:51:29,148 WARN L233 SmtUtils]: Spent 15.88s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:52:19,223 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 .cse4)))) (_ bv0 32))) (fp.gt .cse3 .cse4)))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse7 .cse4)))) (_ bv0 32)) (fp.gt .cse7 .cse4)))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))))) is different from false [2022-12-13 15:52:51,030 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 .cse4)))) (_ bv0 32))) (fp.gt .cse3 .cse4)))) (= (_ bv0 32) c___VERIFIER_assert_~cond)) (and (= (_ bv1 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse7 .cse4)))) (_ bv0 32)) (fp.gt .cse7 .cse4))))))) is different from false [2022-12-13 15:53:07,951 WARN L837 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)))) (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse0) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (_ bv0 32))) (fp.gt .cse1 .cse2)))) is different from false [2022-12-13 15:53:10,008 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32)))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (not (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)))) (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse0) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 .cse2))))) (_ bv0 32))) (fp.gt .cse1 .cse2)))) is different from true [2022-12-13 15:53:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 2 times theorem prover too weak. 4 trivial. 4 not checked. [2022-12-13 15:53:10,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:53:21,518 WARN L837 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from false [2022-12-13 15:53:23,588 WARN L859 $PredicateComparison]: unable to prove that (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) is different from true [2022-12-13 15:53:38,337 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) is different from false [2022-12-13 15:53:40,432 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) is different from true [2022-12-13 15:54:12,579 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse3 (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse3 .cse3)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) is different from false [2022-12-13 15:54:14,695 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse3 (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse3 .cse3)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) is different from true [2022-12-13 15:54:53,610 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse2) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) (_ bv0 32)))) is different from false [2022-12-13 15:54:55,687 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse2) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) (_ bv0 32)))) is different from true [2022-12-13 15:55:10,472 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse2) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) (_ bv0 32)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) is different from false [2022-12-13 15:55:12,551 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse0 .cse1)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse2) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode .cse0 .cse1))))) (_ bv0 32)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) is different from true [2022-12-13 15:55:29,616 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~a~0#1_12| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_12|) .cse0) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (not (fp.gt .cse1 .cse2))))) is different from false [2022-12-13 15:55:31,696 WARN L859 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~a~0#1_12| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_12|) .cse0) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (not (fp.gt .cse1 .cse2))))) is different from true [2022-12-13 15:55:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 7 not checked. [2022-12-13 15:55:31,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:55:31,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577370687] [2022-12-13 15:55:31,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:55:31,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1579297048] [2022-12-13 15:55:31,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1579297048] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:55:31,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:55:31,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 19 [2022-12-13 15:55:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047751705] [2022-12-13 15:55:31,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:55:31,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 15:55:31,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:55:31,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 15:55:31,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=63, Unknown=20, NotChecked=216, Total=342 [2022-12-13 15:55:31,699 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 17 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 15:55:33,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:55:36,396 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~a~0#1_12| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_12|) .cse0) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (not (fp.gt .cse1 .cse2))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-13 15:55:38,503 WARN L859 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~a~0#1_12| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_12|) .cse0) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)) (not (fp.leq |v_ULTIMATE.start_main_~a~0#1_12| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (not (fp.gt .cse1 .cse2))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-13 15:55:40,590 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (let ((.cse1 (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (.cse0 (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse3))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) .cse2))) (let ((.cse4 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) .cse3)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse4 .cse5)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse6) (fp.mul c_currentRoundingMode .cse6 (fp.sub c_currentRoundingMode .cse4 .cse5))))) (_ bv0 32)) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:55:42,673 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (let ((.cse1 (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32)))) (.cse0 (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse3))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) .cse2))) (let ((.cse4 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) .cse3)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse4 .cse5)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse6 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse6) (fp.mul c_currentRoundingMode .cse6 (fp.sub c_currentRoundingMode .cse4 .cse5))))) (_ bv0 32)) .cse2)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:55:44,765 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse0) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) .cse0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse1 .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse3) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:55:46,851 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| .cse0) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) .cse0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (or (not (fp.gt .cse1 .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)))) (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|) .cse3) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode .cse1 .cse2))))) (_ bv0 32)))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:55:48,935 WARN L837 $PredicateComparison]: unable to prove that (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= |c_ULTIMATE.start_main_~x~0#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv0 32) |c_ULTIMATE.start_main_~r~0#1|) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse3 (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse3 .cse3)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-13 15:55:51,047 WARN L859 $PredicateComparison]: unable to prove that (and (fp.geq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= |c_ULTIMATE.start_main_~x~0#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv0 32) |c_ULTIMATE.start_main_~r~0#1|) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|)))) (or (not (fp.gt .cse0 .cse1)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse2)) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse3 (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse3 .cse3)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse3))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode .cse0 .cse1)))) (_ bv0 32))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-13 15:55:53,244 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv4294967295 32) |c_ULTIMATE.start_main_~r~0#1|)))) (and (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (fp.sub c_currentRoundingMode .cse2 .cse3) |c_ULTIMATE.start_main_~x~0#1|) (= (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|) (fp.gt .cse2 .cse3) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:55:55,378 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (bvadd (_ bv4294967295 32) |c_ULTIMATE.start_main_~r~0#1|)))) (and (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|))) (or (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul .cse0 .cse0)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (_ bv0 32)) (not (fp.gt |c_ULTIMATE.start_main_~x~0#1| .cse1)))) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (fp.sub c_currentRoundingMode .cse2 .cse3) |c_ULTIMATE.start_main_~x~0#1|) (= (_ bv1 32) |c_ULTIMATE.start_main_~r~0#1|) (fp.gt .cse2 .cse3) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:55:57,471 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (and (fp.gt .cse0 .cse1) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) (= |c_ULTIMATE.start_main_~x~0#1| (fp.sub c_currentRoundingMode .cse0 .cse1)) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-12-13 15:55:59,567 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))) (and (fp.gt .cse0 .cse1) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~r~0#1|)) |c_ULTIMATE.start_main_~a~0#1|) ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~r~0#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~x~0#1|))) (_ bv0 32)) (= |c_ULTIMATE.start_main_~x~0#1| (fp.sub c_currentRoundingMode .cse0 .cse1)) (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= (_ bv2 32) |c_ULTIMATE.start_main_~r~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-12-13 15:56:01,657 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (and (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 .cse4)))) (_ bv0 32))) (fp.gt .cse3 .cse4)))) .cse7) (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse5) .cse6))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse2) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse8 .cse4)))) (_ bv0 32)) (fp.gt .cse8 .cse4)))) (= |c___VERIFIER_assert_#in~cond| (_ bv1 32))))) (not .cse7))) is different from false [2022-12-13 15:56:03,756 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (and (not .cse0) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv100 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv4 32))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (or (and (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse4 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse6) .cse7))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse1) (not (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse3) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse4 .cse5)))) (_ bv0 32))) (fp.gt .cse4 .cse5)))) .cse0) (and (= (_ bv1 32) c___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse6) .cse7))) (and (fp.leq |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9| .cse1) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_9|) .cse3) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse8 .cse5)))) (_ bv0 32)) (fp.gt .cse8 .cse5))))))))) is different from false [2022-12-13 15:56:05,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:56:07,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:56:09,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:56:11,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:56:14,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 15:56:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:56:14,088 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-12-13 15:56:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:56:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 17 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 23 [2022-12-13 15:56:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:56:14,089 INFO L225 Difference]: With dead ends: 33 [2022-12-13 15:56:14,090 INFO L226 Difference]: Without dead ends: 31 [2022-12-13 15:56:14,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 17 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 123.7s TimeCoverageRelationStatistics Valid=63, Invalid=81, Unknown=34, NotChecked=578, Total=756 [2022-12-13 15:56:14,092 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:56:14,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 75 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 5 Unknown, 108 Unchecked, 13.0s Time] [2022-12-13 15:56:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-13 15:56:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-13 15:56:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 15:56:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-12-13 15:56:14,099 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2022-12-13 15:56:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:56:14,099 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-12-13 15:56:14,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 17 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 15:56:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-12-13 15:56:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 15:56:14,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:56:14,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-12-13 15:56:14,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 15:56:14,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-12-13 15:56:14,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 15:56:14,503 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:56:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:56:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -195827270, now seen corresponding path program 3 times [2022-12-13 15:56:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:56:14,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662985381] [2022-12-13 15:56:14,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:56:14,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:56:14,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:56:14,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:56:14,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 15:56:16,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 15:56:16,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 15:56:16,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:56:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:56:18,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Invalid model [2022-12-13 15:56:18,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [724523755] [2022-12-13 15:56:18,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:56:18,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 15:56:18,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 15:56:18,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 15:56:18,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47d7a9ba-340d-483c-982f-b2eaf5ea25ca/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process