./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/bary_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/bary_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa --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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:49:27,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:49:27,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:49:27,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:49:27,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:49:27,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:49:27,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:49:27,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:49:27,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:49:27,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:49:27,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:49:27,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:49:27,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:49:27,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:49:27,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:49:27,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:49:27,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:49:27,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:49:27,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:49:27,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:49:27,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:49:27,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:49:27,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:49:27,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:49:27,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:49:27,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:49:27,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:49:27,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:49:27,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:49:27,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:49:27,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:49:27,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:49:27,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:49:27,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:49:27,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:49:27,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:49:27,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:49:27,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:49:27,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:49:27,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:49:27,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:49:27,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:49:27,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:49:27,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:49:27,181 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:49:27,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:49:27,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:49:27,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:49:27,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:49:27,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:49:27,183 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:49:27,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:49:27,183 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:49:27,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:49:27,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:49:27,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:49:27,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:49:27,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:49:27,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:49:27,185 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:49:27,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:49:27,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:49:27,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:49:27,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:49:27,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:49:27,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:49:27,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:49:27,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:49:27,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:49:27,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:49:27,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:49:27,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2021-12-07 00:49:27,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:49:27,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:49:27,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:49:27,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:49:27,398 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:49:27,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/bary_diverge.c [2021-12-07 00:49:27,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/04d9055be/24e2815471f5449f80027ce98f0ac0dd/FLAGd98c26b3f [2021-12-07 00:49:27,802 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:49:27,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c [2021-12-07 00:49:27,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/04d9055be/24e2815471f5449f80027ce98f0ac0dd/FLAGd98c26b3f [2021-12-07 00:49:27,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/04d9055be/24e2815471f5449f80027ce98f0ac0dd [2021-12-07 00:49:27,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:49:27,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:49:27,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:49:27,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:49:27,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:49:27,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:27" (1/1) ... [2021-12-07 00:49:27,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55eea267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:27, skipping insertion in model container [2021-12-07 00:49:27,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:27" (1/1) ... [2021-12-07 00:49:27,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:49:27,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:49:27,957 WARN L230 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_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2021-12-07 00:49:27,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:49:27,978 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:49:27,986 WARN L230 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_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2021-12-07 00:49:27,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:49:28,000 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:49:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28 WrapperNode [2021-12-07 00:49:28,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:49:28,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:49:28,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:49:28,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:49:28,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,032 INFO L137 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2021-12-07 00:49:28,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:49:28,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:49:28,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:49:28,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:49:28,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:49:28,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:49:28,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:49:28,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:49:28,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (1/1) ... [2021-12-07 00:49:28,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:49:28,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:49:28,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:49:28,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:49:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:49:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2021-12-07 00:49:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2021-12-07 00:49:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:49:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:49:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:49:28,156 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:49:28,157 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:49:28,231 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:49:28,236 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:49:28,236 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:49:28,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:28 BoogieIcfgContainer [2021-12-07 00:49:28,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:49:28,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:49:28,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:49:28,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:49:28,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:27" (1/3) ... [2021-12-07 00:49:28,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1263fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:28, skipping insertion in model container [2021-12-07 00:49:28,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:28" (2/3) ... [2021-12-07 00:49:28,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1263fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:28, skipping insertion in model container [2021-12-07 00:49:28,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:28" (3/3) ... [2021-12-07 00:49:28,243 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2021-12-07 00:49:28,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:49:28,247 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:49:28,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:49:28,287 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:49:28,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:49:28,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:49:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:49:28,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:28,305 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:28,305 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times [2021-12-07 00:49:28,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:49:28,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862255872] [2021-12-07 00:49:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:28,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:49:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:49:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-07 00:49:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 00:49:28,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:49:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862255872] [2021-12-07 00:49:28,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862255872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:28,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:49:28,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:49:28,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434112147] [2021-12-07 00:49:28,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:28,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:49:28,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:49:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:49:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:49:28,493 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:49:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:28,509 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2021-12-07 00:49:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:49:28,511 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-12-07 00:49:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:28,518 INFO L225 Difference]: With dead ends: 61 [2021-12-07 00:49:28,518 INFO L226 Difference]: Without dead ends: 28 [2021-12-07 00:49:28,522 INFO L932 BasicCegarLoop]: 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 [2021-12-07 00:49:28,526 INFO L933 BasicCegarLoop]: 38 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, 38 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 [2021-12-07 00:49:28,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:49:28,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-07 00:49:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-12-07 00:49:28,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:49:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-12-07 00:49:28,558 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2021-12-07 00:49:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:28,558 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-12-07 00:49:28,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:49:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-12-07 00:49:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:49:28,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:28,560 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:28,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:49:28,560 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times [2021-12-07 00:49:28,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:49:28,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607089919] [2021-12-07 00:49:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:28,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:49:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:49:28,591 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:49:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:49:28,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:49:28,637 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:49:28,638 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:49:28,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:49:28,642 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-07 00:49:28,645 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:49:28,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:49:28 BoogieIcfgContainer [2021-12-07 00:49:28,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:49:28,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:49:28,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:49:28,670 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:49:28,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:28" (3/4) ... [2021-12-07 00:49:28,672 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:49:28,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:49:28,673 INFO L158 Benchmark]: Toolchain (without parser) took 852.98ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 49.5MB in the beginning and 83.3MB in the end (delta: -33.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:49:28,673 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:49:28,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.98ms. Allocated memory is still 90.2MB. Free memory was 49.3MB in the beginning and 58.6MB in the end (delta: -9.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:49:28,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.09ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 57.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:49:28,675 INFO L158 Benchmark]: Boogie Preprocessor took 15.17ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 55.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:49:28,675 INFO L158 Benchmark]: RCFGBuilder took 188.38ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 46.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:49:28,676 INFO L158 Benchmark]: TraceAbstraction took 430.53ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 45.7MB in the beginning and 83.5MB in the end (delta: -37.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:49:28,676 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 83.3MB in the end (delta: 246.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:49:28,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.98ms. Allocated memory is still 90.2MB. Free memory was 49.3MB in the beginning and 58.6MB in the end (delta: -9.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.09ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 57.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.17ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 55.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 188.38ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 46.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 430.53ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 45.7MB in the beginning and 83.5MB in the end (delta: -37.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 83.3MB in the end (delta: 246.1kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 50. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; VAL [C1=0, I=0, INIT=0, X=0, Y=0, Z=0] [L55] int i; [L57] INIT = TRUE VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L58] CALL, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=0, cond=1, I=0, INIT=1, X=0, Y=0, Z=0] [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; VAL [\result=50, C1=0, I=0, INIT=1, X=0, x=50, Y=0, Z=0] [L58] RET, EXPR RANDOM_INPUT() VAL [C1=0, I=0, INIT=1, RANDOM_INPUT()=50, X=0, Y=0, Z=0] [L58] C1 = RANDOM_INPUT() [L59] CALL, EXPR RANDOM_INPUT() VAL [C1=50, I=0, INIT=1, X=0, Y=0, Z=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L26] CALL assume_abort_if_not(x >= -1.f && x <= 1.f) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, C1=50, cond=1, I=0, INIT=1, X=0, Y=0, Z=0] [L26] RET assume_abort_if_not(x >= -1.f && x <= 1.f) [L27] return x; VAL [\result=49, C1=50, I=0, INIT=1, x=49, X=0, Y=0, Z=0] [L59] RET, EXPR RANDOM_INPUT() VAL [C1=50, I=0, INIT=1, RANDOM_INPUT()=49, X=0, Y=0, Z=0] [L59] I = RANDOM_INPUT() [L61] i = 0 VAL [C1=50, i=0, I=49, INIT=1, X=0, Y=0, Z=0] [L61] COND TRUE i < 3600000 [L62] CALL bary() [L36] COND TRUE C1 > 0.f [L37] Z = Y [L38] Y = X VAL [C1=50, I=49, INIT=1, X=0, Y=0, Z=0] [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I VAL [C1=50, I=49, INIT=1, X=49, Y=49, Z=49] [L50] CALL __VERIFIER_assert(X >= -5.f && X <= 5.f) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=50, cond=0, I=49, INIT=1, X=49, Y=49, Z=49] [L14] reach_error() VAL [\old(cond)=0, C1=50, cond=0, I=49, INIT=1, X=49, Y=49, Z=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 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, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 5/5 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 [2021-12-07 00:49:28,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/bary_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa --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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:49:30,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:49:30,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:49:30,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:49:30,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:49:30,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:49:30,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:49:30,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:49:30,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:49:30,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:49:30,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:49:30,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:49:30,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:49:30,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:49:30,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:49:30,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:49:30,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:49:30,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:49:30,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:49:30,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:49:30,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:49:30,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:49:30,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:49:30,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:49:30,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:49:30,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:49:30,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:49:30,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:49:30,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:49:30,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:49:30,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:49:30,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:49:30,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:49:30,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:49:30,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:49:30,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:49:30,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:49:30,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:49:30,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:49:30,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:49:30,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:49:30,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 00:49:30,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:49:30,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:49:30,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:49:30,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:49:30,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:49:30,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:49:30,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:49:30,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:49:30,543 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:49:30,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:49:30,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:49:30,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 00:49:30,544 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:49:30,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:49:30,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:49:30,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:49:30,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:49:30,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:49:30,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 00:49:30,547 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2021-12-07 00:49:30,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:49:30,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:49:30,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:49:30,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:49:30,810 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:49:30,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/bary_diverge.c [2021-12-07 00:49:30,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/f28ad18ad/d9ad60b626f3432ba7663988b9d997e6/FLAGaaf5df684 [2021-12-07 00:49:31,259 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:49:31,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c [2021-12-07 00:49:31,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/f28ad18ad/d9ad60b626f3432ba7663988b9d997e6/FLAGaaf5df684 [2021-12-07 00:49:31,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/data/f28ad18ad/d9ad60b626f3432ba7663988b9d997e6 [2021-12-07 00:49:31,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:49:31,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:49:31,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:49:31,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:49:31,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:49:31,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234c6c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31, skipping insertion in model container [2021-12-07 00:49:31,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:49:31,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:49:31,409 WARN L230 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_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2021-12-07 00:49:31,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:49:31,442 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:49:31,455 WARN L230 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_97c9186a-f130-4db0-915a-191dc0378b0a/sv-benchmarks/c/float-benchs/bary_diverge.c[632,645] [2021-12-07 00:49:31,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:49:31,477 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:49:31,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31 WrapperNode [2021-12-07 00:49:31,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:49:31,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:49:31,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:49:31,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:49:31,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,515 INFO L137 Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2021-12-07 00:49:31,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:49:31,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:49:31,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:49:31,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:49:31,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:49:31,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:49:31,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:49:31,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:49:31,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (1/1) ... [2021-12-07 00:49:31,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:49:31,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:49:31,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:49:31,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:49:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:49:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2021-12-07 00:49:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2021-12-07 00:49:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 00:49:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:49:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:49:31,656 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:49:31,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:49:32,035 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:49:32,041 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:49:32,041 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:49:32,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:32 BoogieIcfgContainer [2021-12-07 00:49:32,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:49:32,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:49:32,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:49:32,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:49:32,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:31" (1/3) ... [2021-12-07 00:49:32,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a211ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:32, skipping insertion in model container [2021-12-07 00:49:32,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:31" (2/3) ... [2021-12-07 00:49:32,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a211ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:32, skipping insertion in model container [2021-12-07 00:49:32,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:32" (3/3) ... [2021-12-07 00:49:32,058 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2021-12-07 00:49:32,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:49:32,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:49:32,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:49:32,111 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:49:32,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:49:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:49:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:49:32,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:32,129 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:32,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times [2021-12-07 00:49:32,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:49:32,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786031428] [2021-12-07 00:49:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:32,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:49:32,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:49:32,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:49:32,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 00:49:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:32,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 00:49:32,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-07 00:49:32,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:49:32,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:49:32,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786031428] [2021-12-07 00:49:32,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786031428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:32,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:49:32,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:49:32,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974821819] [2021-12-07 00:49:32,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:32,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:49:32,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:49:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:49:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:49:32,295 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:49:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:32,313 INFO L93 Difference]: Finished difference Result 61 states and 83 transitions. [2021-12-07 00:49:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:49:32,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-12-07 00:49:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:32,321 INFO L225 Difference]: With dead ends: 61 [2021-12-07 00:49:32,321 INFO L226 Difference]: Without dead ends: 28 [2021-12-07 00:49:32,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:49:32,327 INFO L933 BasicCegarLoop]: 38 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, 38 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 [2021-12-07 00:49:32,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:49:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-07 00:49:32,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-12-07 00:49:32,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-07 00:49:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-12-07 00:49:32,356 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22 [2021-12-07 00:49:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:32,357 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-12-07 00:49:32,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-07 00:49:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-12-07 00:49:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:49:32,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:32,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:32,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:49:32,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:49:32,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times [2021-12-07 00:49:32,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:49:32,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622245448] [2021-12-07 00:49:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:32,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:49:32,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:49:32,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:49:32,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 00:49:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:32,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 00:49:32,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 00:49:33,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:49:33,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:49:33,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622245448] [2021-12-07 00:49:33,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622245448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:33,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:49:33,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:49:33,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142052712] [2021-12-07 00:49:33,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:33,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:49:33,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:49:33,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:49:33,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:49:33,056 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 00:49:35,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 00:49:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:36,274 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2021-12-07 00:49:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-07 00:49:36,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-12-07 00:49:36,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:36,277 INFO L225 Difference]: With dead ends: 54 [2021-12-07 00:49:36,277 INFO L226 Difference]: Without dead ends: 52 [2021-12-07 00:49:36,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-12-07 00:49:36,279 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 56 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-07 00:49:36,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 190 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-12-07 00:49:36,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-07 00:49:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2021-12-07 00:49:36,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 00:49:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2021-12-07 00:49:36,292 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 22 [2021-12-07 00:49:36,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:36,292 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2021-12-07 00:49:36,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 00:49:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2021-12-07 00:49:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-07 00:49:36,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:36,294 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:36,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 00:49:36,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:49:36,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:36,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:36,498 INFO L85 PathProgramCache]: Analyzing trace with hash -920184724, now seen corresponding path program 1 times [2021-12-07 00:49:36,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:49:36,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416128186] [2021-12-07 00:49:36,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:36,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:49:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:49:36,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:49:36,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 00:49:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:36,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:49:36,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-07 00:49:36,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:49:36,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:49:36,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416128186] [2021-12-07 00:49:36,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416128186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:36,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:49:36,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:49:36,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737573828] [2021-12-07 00:49:36,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:36,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:49:36,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:49:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:49:36,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:49:36,785 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 00:49:38,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 00:49:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:38,864 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2021-12-07 00:49:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:49:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-12-07 00:49:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:38,889 INFO L225 Difference]: With dead ends: 85 [2021-12-07 00:49:38,889 INFO L226 Difference]: Without dead ends: 63 [2021-12-07 00:49:38,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:49:38,891 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:49:38,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-07 00:49:38,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-07 00:49:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2021-12-07 00:49:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.108695652173913) internal successors, (51), 48 states have internal predecessors, (51), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-07 00:49:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2021-12-07 00:49:38,904 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 22 [2021-12-07 00:49:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:38,905 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2021-12-07 00:49:38,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-07 00:49:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2021-12-07 00:49:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 00:49:38,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:38,907 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:38,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-07 00:49:39,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:49:39,109 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash -961441789, now seen corresponding path program 1 times [2021-12-07 00:49:39,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:49:39,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144910530] [2021-12-07 00:49:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:39,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:49:39,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:49:39,119 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:49:39,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 00:49:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:39,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 00:49:39,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:39,617 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-07 00:49:39,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:49:39,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:49:39,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144910530] [2021-12-07 00:49:39,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144910530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:49:39,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:49:39,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-07 00:49:39,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132440918] [2021-12-07 00:49:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:49:39,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-07 00:49:39,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:49:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-07 00:49:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:49:39,619 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 00:49:42,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 00:49:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:49:42,750 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2021-12-07 00:49:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 00:49:42,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-12-07 00:49:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:49:42,752 INFO L225 Difference]: With dead ends: 83 [2021-12-07 00:49:42,752 INFO L226 Difference]: Without dead ends: 81 [2021-12-07 00:49:42,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2021-12-07 00:49:42,754 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-07 00:49:42,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-12-07 00:49:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-07 00:49:42,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2021-12-07 00:49:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 00:49:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-12-07 00:49:42,766 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 52 [2021-12-07 00:49:42,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:49:42,766 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-12-07 00:49:42,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-07 00:49:42,766 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-12-07 00:49:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-07 00:49:42,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:49:42,767 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:49:42,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-07 00:49:42,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:49:42,969 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:49:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:49:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash -961382207, now seen corresponding path program 1 times [2021-12-07 00:49:42,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:49:42,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069252245] [2021-12-07 00:49:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:49:42,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:49:42,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:49:42,976 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:49:42,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-07 00:49:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:49:43,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 00:49:43,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:49:53,866 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) ~Z~0)) c_~X~0) (fp.geq ~Z~0 (fp.neg .cse0)) (fp.leq ~Z~0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-12-07 00:50:53,870 WARN L860 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse2 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (let ((.cse0 (fp.leq .cse2 .cse3)) (.cse1 (fp.geq .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse0 .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse0) (not .cse1)))))) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 (fp.neg .cse4))))) is different from true [2021-12-07 00:51:30,808 WARN L838 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from false [2021-12-07 00:51:32,821 WARN L860 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from true [2021-12-07 00:51:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 2 not checked. [2021-12-07 00:51:32,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:51:43,104 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2021-12-07 00:51:45,133 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2021-12-07 00:51:54,131 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-12-07 00:51:56,157 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-12-07 00:53:51,007 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2021-12-07 00:53:53,034 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2021-12-07 00:54:16,013 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-12-07 00:54:18,039 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-12-07 00:54:55,212 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret6#1_10| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_10| (fp.neg .cse0))) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_10| .cse0)) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2)))))) is different from false [2021-12-07 00:54:57,240 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret6#1_10| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_10| (fp.neg .cse0))) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_10| .cse0)) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_10|))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2)))))) is different from true [2021-12-07 00:54:57,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:54:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069252245] [2021-12-07 00:54:57,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069252245] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 00:54:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [737222806] [2021-12-07 00:54:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:54:57,241 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-07 00:54:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/cvc4 [2021-12-07 00:54:57,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-07 00:54:57,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-12-07 00:54:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:54:58,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-07 00:54:58,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:56:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 2 not checked. [2021-12-07 00:56:36,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:58:37,096 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from false [2021-12-07 00:58:39,126 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from true [2021-12-07 00:58:57,532 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse0 (fp.neg .cse1))) (or (not (fp.geq c_~X~0 .cse0)) (not (fp.leq c_~X~0 .cse1)) (let ((.cse2 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0)))) (and (fp.leq .cse2 .cse1) (fp.geq .cse2 .cse0)))))) is different from false [2021-12-07 00:58:59,564 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse0 (fp.neg .cse1))) (or (not (fp.geq c_~X~0 .cse0)) (not (fp.leq c_~X~0 .cse1)) (let ((.cse2 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0)))) (and (fp.leq .cse2 .cse1) (fp.geq .cse2 .cse0)))))) is different from true [2021-12-07 00:59:13,630 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse0))) (or (not (fp.leq c_~I~0 .cse0)) (not (fp.geq c_~I~0 .cse1)) (let ((.cse2 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0)))) (and (fp.geq .cse2 .cse1) (fp.leq .cse2 .cse0)))))) is different from false [2021-12-07 00:59:15,660 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse1 (fp.neg .cse0))) (or (not (fp.leq c_~I~0 .cse0)) (not (fp.geq c_~I~0 .cse1)) (let ((.cse2 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~I~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~I~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~I~0)))) (and (fp.geq .cse2 .cse1) (fp.leq .cse2 .cse0)))))) is different from true [2021-12-07 00:59:58,151 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse2 (fp.neg .cse0))) (or (not (fp.leq |c_ULTIMATE.start_main_#t~ret6#1| .cse0)) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)))) (and (fp.leq .cse1 .cse0) (fp.geq .cse1 .cse2))) (not (fp.geq |c_ULTIMATE.start_main_#t~ret6#1| .cse2))))) is different from false [2021-12-07 01:00:00,179 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (let ((.cse2 (fp.neg .cse0))) (or (not (fp.leq |c_ULTIMATE.start_main_#t~ret6#1| .cse0)) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |c_ULTIMATE.start_main_#t~ret6#1|)))) (and (fp.leq .cse1 .cse0) (fp.geq .cse1 .cse2))) (not (fp.geq |c_ULTIMATE.start_main_#t~ret6#1| .cse2))))) is different from true [2021-12-07 01:00:54,313 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret6#1_14| (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_14| .cse2)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_14| (fp.neg .cse2)))))) is different from false [2021-12-07 01:00:56,340 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~ret6#1_14| (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (or (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) |v_ULTIMATE.start_main_#t~ret6#1_14|))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) (not (fp.leq |v_ULTIMATE.start_main_#t~ret6#1_14| .cse2)) (not (fp.geq |v_ULTIMATE.start_main_#t~ret6#1_14| (fp.neg .cse2)))))) is different from true [2021-12-07 01:00:56,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [737222806] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:00:56,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-07 01:00:56,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 12 [2021-12-07 01:00:56,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973773693] [2021-12-07 01:00:56,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-07 01:00:56,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-07 01:00:56,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:00:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-07 01:00:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=121, Unknown=24, NotChecked=442, Total=650 [2021-12-07 01:00:56,343 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:00:59,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:01,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:03,353 WARN L534 Checker$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 [] [2021-12-07 01:01:05,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:07,124 WARN L534 Checker$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 [] [2021-12-07 01:01:09,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:11,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:01:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:01:11,498 INFO L93 Difference]: Finished difference Result 125 states and 140 transitions. [2021-12-07 01:01:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-07 01:01:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2021-12-07 01:01:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:01:11,500 INFO L225 Difference]: With dead ends: 125 [2021-12-07 01:01:11,500 INFO L226 Difference]: Without dead ends: 123 [2021-12-07 01:01:11,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 53.4s TimeCoverageRelationStatistics Valid=146, Invalid=344, Unknown=24, NotChecked=676, Total=1190 [2021-12-07 01:01:11,502 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 78 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 44 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:01:11,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 159 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 153 Invalid, 3 Unknown, 216 Unchecked, 14.0s Time] [2021-12-07 01:01:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-07 01:01:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 82. [2021-12-07 01:01:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 64 states have (on average 1.09375) internal successors, (70), 65 states have internal predecessors, (70), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-07 01:01:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2021-12-07 01:01:11,517 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 52 [2021-12-07 01:01:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:01:11,517 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2021-12-07 01:01:11,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-07 01:01:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2021-12-07 01:01:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-07 01:01:11,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:01:11,520 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:01:11,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-12-07 01:01:11,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-07 01:01:11,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:01:11,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:01:11,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:01:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash -77572522, now seen corresponding path program 2 times [2021-12-07 01:01:11,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:01:11,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240969877] [2021-12-07 01:01:11,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:01:11,926 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:01:11,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:01:11,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:01:11,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c9186a-f130-4db0-915a-191dc0378b0a/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-07 01:01:12,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:01:12,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:01:12,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 01:01:12,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:01:52,772 WARN L227 SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:02:56,802 WARN L860 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (let ((.cse2 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (let ((.cse0 (fp.leq .cse2 .cse3)) (.cse1 (fp.geq .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse0 .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse0) (not .cse1)))))) (fp.leq ~Z~0 .cse4) (fp.geq ~Z~0 (fp.neg .cse4))))) is different from true [2021-12-07 01:03:34,952 WARN L838 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from false [2021-12-07 01:03:36,967 WARN L860 $PredicateComparison]: unable to prove that (exists ((~Z~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.leq ~Z~0 .cse0) (fp.geq ~Z~0 (fp.neg .cse0)) (let ((.cse1 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 50000001.0 100000000.0)) ~Z~0) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 30000001.0 100000000.0)) ~Z~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 20000001.0 100000000.0)) ~Z~0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 5.0))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2)))))))) is different from true [2021-12-07 01:03:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 19 refuted. 0 times theorem prover too weak. 49 trivial. 2 not checked. [2021-12-07 01:03:36,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:03:51,127 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from false [2021-12-07 01:03:53,157 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~Y~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Z~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.geq .cse0 (fp.neg .cse1)) (fp.leq .cse0 .cse1))) is different from true [2021-12-07 01:04:03,364 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-12-07 01:04:05,392 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 50000001.0 100000000.0)) c_~X~0) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 30000001.0 100000000.0)) c_~X~0)) (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 20000001.0 100000000.0)) c_~Y~0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 5.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true