./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/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_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt --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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/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_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt --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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:56:37,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:56:37,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:56:37,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:56:37,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:56:37,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:56:37,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:56:37,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:56:37,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:56:37,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:56:37,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:56:37,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:56:37,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:56:37,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:56:37,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:56:37,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:56:37,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:56:37,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:56:37,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:56:37,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:56:37,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:56:37,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:56:37,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:56:37,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:56:37,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:56:37,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:56:37,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:56:37,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:56:37,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:56:37,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:56:37,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:56:37,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:56:37,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:56:37,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:56:37,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:56:37,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:56:37,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:56:37,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:56:37,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:56:37,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:56:37,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:56:37,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:56:37,421 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:56:37,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:56:37,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:56:37,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:56:37,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:56:37,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:56:37,424 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:56:37,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:56:37,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:56:37,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:56:37,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:56:37,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:56:37,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:56:37,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:56:37,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:56:37,427 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:56:37,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:56:37,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:56:37,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:56:37,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:56:37,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:56:37,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:56:37,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:37,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:56:37,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:56:37,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:56:37,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:56:37,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:56:37,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:56:37,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:56:37,431 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2021-10-13 00:56:37,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:56:37,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:56:37,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:56:37,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:56:37,745 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:56:37,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-13 00:56:37,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/13645f628/445f132a287e42fa977df75b0e59cfe5/FLAGd2de2fc32 [2021-10-13 00:56:38,376 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:56:38,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-13 00:56:38,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/13645f628/445f132a287e42fa977df75b0e59cfe5/FLAGd2de2fc32 [2021-10-13 00:56:38,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/13645f628/445f132a287e42fa977df75b0e59cfe5 [2021-10-13 00:56:38,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:56:38,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:56:38,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:38,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:56:38,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:56:38,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:38,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38826485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38, skipping insertion in model container [2021-10-13 00:56:38,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:38,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:56:38,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:56:38,919 WARN L228 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-13 00:56:38,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:38,956 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:56:38,969 WARN L228 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-13 00:56:38,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:38,984 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:56:38,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38 WrapperNode [2021-10-13 00:56:38,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:38,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:38,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:56:38,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:56:38,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:39,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:56:39,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:56:39,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:56:39,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:56:39,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:56:39,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:56:39,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:56:39,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (1/1) ... [2021-10-13 00:56:39,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:39,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:39,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:56:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:56:39,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:56:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:56:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:56:39,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:56:39,379 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:56:39,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:39 BoogieIcfgContainer [2021-10-13 00:56:39,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:56:39,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:56:39,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:56:39,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:56:39,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:56:38" (1/3) ... [2021-10-13 00:56:39,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b03adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:39, skipping insertion in model container [2021-10-13 00:56:39,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:38" (2/3) ... [2021-10-13 00:56:39,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b03adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:39, skipping insertion in model container [2021-10-13 00:56:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:39" (3/3) ... [2021-10-13 00:56:39,406 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-10-13 00:56:39,412 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:56:39,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:56:39,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:56:39,482 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:56:39,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:56:39,499 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) [2021-10-13 00:56:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 00:56:39,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:39,505 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 00:56:39,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:39,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:39,513 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-13 00:56:39,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:56:39,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622745145] [2021-10-13 00:56:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:39,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:56:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:39,635 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:56:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:56:39,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:56:39,683 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:56:39,684 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:56:39,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:56:39,696 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:56:39,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:56:39 BoogieIcfgContainer [2021-10-13 00:56:39,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:56:39,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:56:39,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:56:39,724 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:56:39,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:39" (3/4) ... [2021-10-13 00:56:39,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:56:39,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:56:39,733 INFO L168 Benchmark]: Toolchain (without parser) took 1014.63 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 78.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:39,734 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 127.9 MB. Free memory was 100.9 MB in the beginning and 100.9 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:39,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.71 ms. Allocated memory is still 127.9 MB. Free memory was 91.0 MB in the beginning and 102.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:39,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 101.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:39,738 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 127.9 MB. Free memory was 101.1 MB in the beginning and 100.4 MB in the end (delta: 741.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:39,739 INFO L168 Benchmark]: RCFGBuilder took 348.99 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 92.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:39,745 INFO L168 Benchmark]: TraceAbstraction took 321.88 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 78.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:39,748 INFO L168 Benchmark]: Witness Printer took 5.68 ms. Allocated memory is still 127.9 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:39,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 127.9 MB. Free memory was 100.9 MB in the beginning and 100.9 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.71 ms. Allocated memory is still 127.9 MB. Free memory was 91.0 MB in the beginning and 102.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.06 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 101.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 127.9 MB. Free memory was 101.1 MB in the beginning and 100.4 MB in the end (delta: 741.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.99 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 92.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 321.88 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 78.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.68 ms. Allocated memory is still 127.9 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 221.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 32.8ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-10-13 00:56:39,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:56:42,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:56:42,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:56:42,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:56:42,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:56:42,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:56:42,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:56:42,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:56:42,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:56:42,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:56:42,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:56:42,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:56:42,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:56:42,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:56:42,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:56:42,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:56:42,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:56:42,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:56:42,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:56:42,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:56:42,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:56:42,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:56:42,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:56:42,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:56:42,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:56:42,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:56:42,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:56:42,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:56:42,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:56:42,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:56:42,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:56:42,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:56:42,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:56:42,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:56:42,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:56:42,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:56:42,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:56:42,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:56:42,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:56:42,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:56:42,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:56:42,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:56:42,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:56:42,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:56:42,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:56:42,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:56:42,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:56:42,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:56:42,776 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:56:42,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:56:42,777 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:56:42,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:56:42,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:56:42,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:56:42,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:56:42,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:56:42,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:56:42,778 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:56:42,778 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:56:42,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:56:42,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:56:42,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:56:42,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:56:42,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:56:42,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:56:42,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:42,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:56:42,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:56:42,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:56:42,784 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:56:42,785 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:56:42,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:56:42,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:56:42,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:56:42,786 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2021-10-13 00:56:43,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:56:43,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:56:43,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:56:43,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:56:43,298 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:56:43,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-13 00:56:43,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/2ace8dff9/fec26b76b9494c4ba715904bd9e8ceb0/FLAG886020082 [2021-10-13 00:56:43,999 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:56:44,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2021-10-13 00:56:44,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/2ace8dff9/fec26b76b9494c4ba715904bd9e8ceb0/FLAG886020082 [2021-10-13 00:56:44,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/data/2ace8dff9/fec26b76b9494c4ba715904bd9e8ceb0 [2021-10-13 00:56:44,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:56:44,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:56:44,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:44,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:56:44,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:56:44,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3d1800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44, skipping insertion in model container [2021-10-13 00:56:44,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:56:44,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:56:44,614 WARN L228 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-13 00:56:44,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:44,649 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:56:44,687 WARN L228 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_9e8fbbf4-7d09-408a-babb-8dec145e5525/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2021-10-13 00:56:44,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:56:44,706 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:56:44,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44 WrapperNode [2021-10-13 00:56:44,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:56:44,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:44,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:56:44,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:56:44,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:56:44,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:56:44,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:56:44,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:56:44,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:56:44,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:56:44,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:56:44,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:56:44,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (1/1) ... [2021-10-13 00:56:44,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:56:44,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:56:44,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:56:44,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:56:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:56:44,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:56:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:56:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:56:45,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:56:45,167 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:56:45,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:45 BoogieIcfgContainer [2021-10-13 00:56:45,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:56:45,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:56:45,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:56:45,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:56:45,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:56:44" (1/3) ... [2021-10-13 00:56:45,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c02ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:45, skipping insertion in model container [2021-10-13 00:56:45,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:56:44" (2/3) ... [2021-10-13 00:56:45,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c02ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:56:45, skipping insertion in model container [2021-10-13 00:56:45,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:45" (3/3) ... [2021-10-13 00:56:45,190 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2021-10-13 00:56:45,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:56:45,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:56:45,315 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:56:45,326 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:56:45,327 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:56:45,354 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) [2021-10-13 00:56:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 00:56:45,362 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:56:45,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 00:56:45,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:56:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:56:45,378 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-13 00:56:45,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:56:45,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625381953] [2021-10-13 00:56:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:56:45,392 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:56:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:56:45,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:56:45,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:56:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:56:45,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:56:45,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:56:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:45,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:56:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:56:46,520 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:56:46,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625381953] [2021-10-13 00:56:46,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625381953] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:56:46,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:56:46,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 00:56:46,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122744902] [2021-10-13 00:56:46,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:56:46,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:56:46,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:56:46,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:56:46,546 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) [2021-10-13 00:56:46,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:56:46,632 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-13 00:56:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:56:46,636 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 [2021-10-13 00:56:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:56:46,644 INFO L225 Difference]: With dead ends: 11 [2021-10-13 00:56:46,644 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:56:46,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 667.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:56:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:56:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:56:46,677 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) [2021-10-13 00:56:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:56:46,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-13 00:56:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:56:46,680 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:56:46,681 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) [2021-10-13 00:56:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:56:46,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:56:46,684 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:56:46,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:56:46,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:56:46,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:56:46,906 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:56:46,907 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:56:46,907 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:56:46,907 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:56:46,908 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-13 00:56:46,908 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-13 00:56:46,908 INFO L857 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-10-13 00:56:46,908 INFO L857 garLoopResultBuilder]: For program point L5(lines 5 11) no Hoare annotation was computed. [2021-10-13 00:56:46,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:56:46,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:56:46 BoogieIcfgContainer [2021-10-13 00:56:46,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:56:46,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:56:46,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:56:46,918 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:56:46,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:56:45" (3/4) ... [2021-10-13 00:56:46,927 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:56:46,939 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:56:46,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:56:46,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 00:56:46,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:56:46,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:56:47,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:56:47,004 INFO L168 Benchmark]: Toolchain (without parser) took 2617.74 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 39.0 MB in the beginning and 42.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,005 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:47,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.47 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 42.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.63 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,014 INFO L168 Benchmark]: Boogie Preprocessor took 27.77 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.7 MB in the end (delta: 990.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:56:47,016 INFO L168 Benchmark]: RCFGBuilder took 389.16 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 31.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,017 INFO L168 Benchmark]: TraceAbstraction took 1733.73 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 30.6 MB in the beginning and 44.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,019 INFO L168 Benchmark]: Witness Printer took 83.61 ms. Allocated memory is still 77.6 MB. Free memory was 44.4 MB in the beginning and 42.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:56:47,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.47 ms. Allocated memory is still 58.7 MB. Free memory was 38.8 MB in the beginning and 42.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.63 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.77 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.7 MB in the end (delta: 990.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 389.16 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 31.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1733.73 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 30.6 MB in the beginning and 44.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 83.61 ms. Allocated memory is still 77.6 MB. Free memory was 44.4 MB in the beginning and 42.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 1605.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 12.5ms, AutomataDifference: 118.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3.8ms, InitialAbstractionConstructionTime: 23.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 14 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 667.0ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 86.9ms SatisfiabilityAnalysisTime, 965.2ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 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! [2021-10-13 00:56:47,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e8fbbf4-7d09-408a-babb-8dec145e5525/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...