./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF --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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:37:18,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:37:18,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:37:18,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:37:18,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:37:18,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:37:18,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:37:18,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:37:18,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:37:18,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:37:18,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:37:18,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:37:18,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:37:18,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:37:18,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:37:18,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:37:18,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:37:18,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:37:18,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:37:18,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:37:18,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:37:18,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:37:18,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:37:18,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:37:18,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:37:18,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:37:18,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:37:18,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:37:18,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:37:18,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:37:18,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:37:18,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:37:18,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:37:18,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:37:18,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:37:18,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:37:18,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:37:18,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:37:18,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:37:18,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:37:18,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:37:18,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:37:18,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:37:18,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:37:18,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:37:18,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:37:18,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:37:18,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:37:18,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:37:18,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:37:18,239 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:37:18,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:37:18,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:37:18,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:37:18,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:37:18,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:37:18,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:37:18,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:37:18,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:37:18,242 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:37:18,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:37:18,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:37:18,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:37:18,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:37:18,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:37:18,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:37:18,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:37:18,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:37:18,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:37:18,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:37:18,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:37:18,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:37:18,248 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:37:18,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:37:18,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:37:18,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:37:18,249 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_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2021-11-20 05:37:18,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:37:18,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:37:18,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:37:18,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:37:18,597 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:37:18,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-11-20 05:37:18,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/fc894422d/129b6c1de1f946b1a1f5b748dcceed3e/FLAG6909749a7 [2021-11-20 05:37:19,149 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:37:19,149 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-11-20 05:37:19,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/fc894422d/129b6c1de1f946b1a1f5b748dcceed3e/FLAG6909749a7 [2021-11-20 05:37:19,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/fc894422d/129b6c1de1f946b1a1f5b748dcceed3e [2021-11-20 05:37:19,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:37:19,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:37:19,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:37:19,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:37:19,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:37:19,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6627a74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19, skipping insertion in model container [2021-11-20 05:37:19,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:37:19,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:37:19,763 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_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-11-20 05:37:19,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:37:19,777 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:37:19,792 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_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-11-20 05:37:19,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:37:19,808 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:37:19,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19 WrapperNode [2021-11-20 05:37:19,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:37:19,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:37:19,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:37:19,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:37:19,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,848 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2021-11-20 05:37:19,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:37:19,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:37:19,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:37:19,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:37:19,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:37:19,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:37:19,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:37:19,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:37:19,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (1/1) ... [2021-11-20 05:37:19,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:37:19,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:37:19,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:37:19,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:37:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:37:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:37:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:37:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:37:20,034 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:37:20,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:37:20,144 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:37:20,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:37:20,152 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:37:20,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:20 BoogieIcfgContainer [2021-11-20 05:37:20,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:37:20,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:37:20,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:37:20,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:37:20,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:37:19" (1/3) ... [2021-11-20 05:37:20,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be53bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:37:20, skipping insertion in model container [2021-11-20 05:37:20,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:19" (2/3) ... [2021-11-20 05:37:20,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be53bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:37:20, skipping insertion in model container [2021-11-20 05:37:20,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:20" (3/3) ... [2021-11-20 05:37:20,165 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-11-20 05:37:20,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:37:20,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:37:20,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:37:20,260 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 [2021-11-20 05:37:20,260 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:37:20,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:37:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 05:37:20,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:20,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 05:37:20,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:37:20,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-20 05:37:20,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:37:20,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399495446] [2021-11-20 05:37:20,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:20,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:37:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:37:20,397 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:37:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:37:20,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:37:20,428 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:37:20,429 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:37:20,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:37:20,439 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 05:37:20,443 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:37:20,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:37:20 BoogieIcfgContainer [2021-11-20 05:37:20,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:37:20,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:37:20,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:37:20,477 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:37:20,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:20" (3/4) ... [2021-11-20 05:37:20,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:37:20,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:37:20,483 INFO L158 Benchmark]: Toolchain (without parser) took 943.86ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 67.6MB in the end (delta: 9.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-20 05:37:20,485 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:20,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.13ms. Allocated memory is still 115.3MB. Free memory was 77.2MB in the beginning and 90.6MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:37:20,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.81ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:37:20,490 INFO L158 Benchmark]: Boogie Preprocessor took 20.08ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 88.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:20,497 INFO L158 Benchmark]: RCFGBuilder took 285.07ms. Allocated memory is still 115.3MB. Free memory was 88.2MB in the beginning and 80.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:37:20,498 INFO L158 Benchmark]: TraceAbstraction took 312.93ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 67.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 05:37:20,499 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 115.3MB. Free memory was 67.9MB in the beginning and 67.6MB in the end (delta: 346.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:20,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.13ms. Allocated memory is still 115.3MB. Free memory was 77.2MB in the beginning and 90.6MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.81ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.08ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 88.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.07ms. Allocated memory is still 115.3MB. Free memory was 88.2MB in the beginning and 80.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 312.93ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 67.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 115.3MB. Free memory was 67.9MB in the beginning and 67.6MB in the end (delta: 346.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 05:37:20,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/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_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF --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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:37:23,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:37:23,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:37:23,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:37:23,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:37:23,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:37:23,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:37:23,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:37:23,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:37:23,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:37:23,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:37:23,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:37:23,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:37:23,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:37:23,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:37:23,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:37:23,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:37:23,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:37:23,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:37:23,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:37:23,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:37:23,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:37:23,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:37:23,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:37:23,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:37:23,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:37:23,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:37:23,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:37:23,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:37:23,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:37:23,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:37:23,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:37:23,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:37:23,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:37:23,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:37:23,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:37:23,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:37:23,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:37:23,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:37:23,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:37:23,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:37:23,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 05:37:23,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:37:23,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:37:23,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:37:23,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:37:23,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:37:23,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:37:23,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:37:23,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:37:23,274 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:37:23,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:37:23,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:37:23,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:37:23,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:37:23,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:37:23,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:37:23,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:37:23,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:37:23,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 05:37:23,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 05:37:23,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:37:23,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:37:23,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:37:23,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:37:23,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:37:23,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:37:23,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:37:23,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:37:23,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:37:23,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:37:23,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:37:23,280 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 05:37:23,280 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 05:37:23,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:37:23,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:37:23,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:37:23,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:37:23,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 05:37:23,282 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_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2021-11-20 05:37:23,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:37:23,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:37:23,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:37:23,729 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:37:23,731 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:37:23,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-11-20 05:37:23,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/65cbe1e8d/932e12b93e5d447a8c3ad20733eb0977/FLAG484274239 [2021-11-20 05:37:24,350 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:37:24,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-11-20 05:37:24,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/65cbe1e8d/932e12b93e5d447a8c3ad20733eb0977/FLAG484274239 [2021-11-20 05:37:24,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/data/65cbe1e8d/932e12b93e5d447a8c3ad20733eb0977 [2021-11-20 05:37:24,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:37:24,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:37:24,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:37:24,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:37:24,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:37:24,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:24,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c75233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24, skipping insertion in model container [2021-11-20 05:37:24,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:24,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:37:24,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:37:24,893 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_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-11-20 05:37:24,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:37:24,911 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:37:24,925 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_afd4b50c-31e1-4747-9353-f618841985c9/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-11-20 05:37:24,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:37:24,955 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:37:24,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24 WrapperNode [2021-11-20 05:37:24,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:37:24,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:37:24,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:37:24,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:37:24,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:24,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,003 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-11-20 05:37:25,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:37:25,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:37:25,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:37:25,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:37:25,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:37:25,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:37:25,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:37:25,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:37:25,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (1/1) ... [2021-11-20 05:37:25,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:37:25,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:37:25,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:37:25,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:37:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:37:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:37:25,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:37:25,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 05:37:25,214 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:37:25,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:37:25,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:37:25,452 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:37:25,453 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:37:25,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:25 BoogieIcfgContainer [2021-11-20 05:37:25,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:37:25,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:37:25,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:37:25,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:37:25,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:37:24" (1/3) ... [2021-11-20 05:37:25,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64c8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:37:25, skipping insertion in model container [2021-11-20 05:37:25,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:37:24" (2/3) ... [2021-11-20 05:37:25,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64c8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:37:25, skipping insertion in model container [2021-11-20 05:37:25,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:25" (3/3) ... [2021-11-20 05:37:25,468 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-11-20 05:37:25,476 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:37:25,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:37:25,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:37:25,564 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 [2021-11-20 05:37:25,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:37:25,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:37:25,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 05:37:25,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:37:25,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 05:37:25,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:37:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:37:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-20 05:37:25,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:37:25,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003989011] [2021-11-20 05:37:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:37:25,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:37:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:37:25,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:37:25,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 05:37:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:37:25,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:37:25,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:37:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:25,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:37:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:37:26,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:37:26,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003989011] [2021-11-20 05:37:26,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003989011] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:37:26,793 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:37:26,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 05:37:26,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413219353] [2021-11-20 05:37:26,796 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:37:26,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:37:26,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:37:26,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:37:26,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:37:26,848 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:37:26,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:37:26,940 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-11-20 05:37:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:37:26,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 05:37:26,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:37:26,953 INFO L225 Difference]: With dead ends: 11 [2021-11-20 05:37:26,953 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 05:37:26,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:37:26,963 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:37:26,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:37:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 05:37:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 05:37:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:37:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 05:37:26,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-11-20 05:37:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:37:26,987 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:37:26,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:37:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:37:26,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 05:37:26,990 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:37:27,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 05:37:27,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:37:27,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 05:37:27,204 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 05:37:27,204 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 05:37:27,204 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 05:37:27,205 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 05:37:27,205 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-11-20 05:37:27,205 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-11-20 05:37:27,205 INFO L858 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-11-20 05:37:27,206 INFO L858 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2021-11-20 05:37:27,209 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 05:37:27,211 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:37:27,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:37:27 BoogieIcfgContainer [2021-11-20 05:37:27,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:37:27,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:37:27,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:37:27,218 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:37:27,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:37:25" (3/4) ... [2021-11-20 05:37:27,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 05:37:27,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-20 05:37:27,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 05:37:27,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 05:37:27,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 05:37:27,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:37:27,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:37:27,275 INFO L158 Benchmark]: Toolchain (without parser) took 2556.10ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 49.5MB in the end (delta: -16.5MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,275 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:27,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.08ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 38.2MB in the end (delta: -5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.38ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 38.2MB in the beginning and 50.9MB in the end (delta: -12.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,278 INFO L158 Benchmark]: Boogie Preprocessor took 38.92ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:37:27,278 INFO L158 Benchmark]: RCFGBuilder took 386.28ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 42.2MB in the end (delta: 7.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,279 INFO L158 Benchmark]: TraceAbstraction took 1758.63ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 35.3MB in the end (delta: 6.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,280 INFO L158 Benchmark]: Witness Printer took 56.17ms. Allocated memory is still 67.1MB. Free memory was 35.3MB in the beginning and 49.5MB in the end (delta: -14.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-11-20 05:37:27,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.08ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 38.2MB in the end (delta: -5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.38ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 38.2MB in the beginning and 50.9MB in the end (delta: -12.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.92ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.28ms. Allocated memory is still 67.1MB. Free memory was 49.8MB in the beginning and 42.2MB in the end (delta: 7.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1758.63ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 35.3MB in the end (delta: 6.4MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 56.17ms. Allocated memory is still 67.1MB. Free memory was 35.3MB in the beginning and 49.5MB in the end (delta: -14.2MB). Peak memory consumption was 4.6MB. 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 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-20 05:37:27,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4b50c-31e1-4747-9353-f618841985c9/bin/uautomizer-DQz5hQGWxF/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 Writing output log to file Ultimate.log Result: TRUE