./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0 --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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:14:18,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:14:18,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:14:18,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:14:18,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:14:18,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:14:18,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:14:18,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:14:18,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:14:18,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:14:18,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:14:18,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:14:18,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:14:18,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:14:18,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:14:18,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:14:18,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:14:18,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:14:18,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:14:18,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:14:18,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:14:18,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:14:18,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:14:18,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:14:18,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:14:18,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:14:18,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:14:18,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:14:18,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:14:18,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:14:18,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:14:18,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:14:18,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:14:18,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:14:18,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:14:18,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:14:18,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:14:18,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:14:18,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:14:18,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:14:18,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:14:18,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:14:18,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:14:18,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:14:18,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:14:18,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:14:18,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:14:18,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:14:18,240 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:14:18,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:14:18,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:14:18,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:14:18,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:14:18,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:14:18,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:14:18,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:14:18,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:14:18,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:14:18,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:14:18,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:14:18,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:14:18,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:14:18,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:14:18,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:14:18,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:18,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:14:18,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:14:18,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:14:18,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:14:18,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:14:18,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:14:18,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:14:18,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:14:18,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:14:18,249 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_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2021-11-22 15:14:18,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:14:18,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:14:18,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:14:18,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:14:18,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:14:18,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-11-22 15:14:18,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/61f41a237/54cdf3ee0f0d49c08df2718c897ab7ce/FLAGb6dc9ec09 [2021-11-22 15:14:19,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:14:19,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-11-22 15:14:19,059 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/61f41a237/54cdf3ee0f0d49c08df2718c897ab7ce/FLAGb6dc9ec09 [2021-11-22 15:14:19,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/61f41a237/54cdf3ee0f0d49c08df2718c897ab7ce [2021-11-22 15:14:19,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:14:19,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:14:19,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:19,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:14:19,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:14:19,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15021446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19, skipping insertion in model container [2021-11-22 15:14:19,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:14:19,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:14:19,681 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_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-11-22 15:14:19,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:19,706 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:14:19,717 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_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-11-22 15:14:19,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:19,735 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:14:19,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19 WrapperNode [2021-11-22 15:14:19,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:19,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:19,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:14:19,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:14:19,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,786 INFO L137 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2021-11-22 15:14:19,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:19,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:14:19,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:14:19,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:14:19,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:14:19,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:14:19,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:14:19,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:14:19,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (1/1) ... [2021-11-22 15:14:19,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:19,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:14:19,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:14:19,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:14:19,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:14:19,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:14:19,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:14:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-22 15:14:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:14:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:14:19,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:14:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:14:19,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:14:19,974 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:14:19,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:14:20,093 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:14:20,099 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:14:20,099 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:14:20,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:20 BoogieIcfgContainer [2021-11-22 15:14:20,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:14:20,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:14:20,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:14:20,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:14:20,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:14:19" (1/3) ... [2021-11-22 15:14:20,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@accd96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:20, skipping insertion in model container [2021-11-22 15:14:20,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:19" (2/3) ... [2021-11-22 15:14:20,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@accd96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:20, skipping insertion in model container [2021-11-22 15:14:20,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:20" (3/3) ... [2021-11-22 15:14:20,110 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-11-22 15:14:20,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:14:20,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:14:20,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:14:20,166 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 [2021-11-22 15:14:20,166 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 15:14:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-11-22 15:14:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:14:20,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:20,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:20,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:14:20,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-11-22 15:14:20,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:20,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248827848] [2021-11-22 15:14:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:20,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:20,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248827848] [2021-11-22 15:14:20,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248827848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:20,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:20,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:14:20,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398966382] [2021-11-22 15:14:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:20,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:14:20,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:14:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:14:20,360 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-22 15:14:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:20,373 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-22 15:14:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:14:20,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 7 [2021-11-22 15:14:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:20,382 INFO L225 Difference]: With dead ends: 21 [2021-11-22 15:14:20,383 INFO L226 Difference]: Without dead ends: 8 [2021-11-22 15:14:20,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:14:20,389 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:20,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-22 15:14:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-22 15:14:20,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 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) [2021-11-22 15:14:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-11-22 15:14:20,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-11-22 15:14:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:20,421 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-11-22 15:14:20,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-22 15:14:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-11-22 15:14:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:14:20,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:20,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:14:20,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:14:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-11-22 15:14:20,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342253426] [2021-11-22 15:14:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:20,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:14:20,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:14:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:14:20,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:14:20,531 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:14:20,532 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 15:14:20,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:14:20,538 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:14:20,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:14:20,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:14:20 BoogieIcfgContainer [2021-11-22 15:14:20,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:14:20,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:14:20,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:14:20,565 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:14:20,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:20" (3/4) ... [2021-11-22 15:14:20,568 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:14:20,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:14:20,569 INFO L158 Benchmark]: Toolchain (without parser) took 1084.95ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 36.4MB in the end (delta: 25.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-11-22 15:14:20,570 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:14:20,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.33ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 75.3MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:14:20,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.58ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:14:20,572 INFO L158 Benchmark]: Boogie Preprocessor took 22.41ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 72.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:14:20,572 INFO L158 Benchmark]: RCFGBuilder took 287.80ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 61.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:14:20,573 INFO L158 Benchmark]: TraceAbstraction took 460.77ms. Allocated memory is still 100.7MB. Free memory was 61.1MB in the beginning and 36.7MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-22 15:14:20,573 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 100.7MB. Free memory was 36.7MB in the beginning and 36.4MB in the end (delta: 285.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:14:20,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.33ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 75.3MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.58ms. Allocated memory is still 100.7MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.41ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 72.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.80ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 61.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 460.77ms. Allocated memory is still 100.7MB. Free memory was 61.1MB in the beginning and 36.7MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 100.7MB. Free memory was 36.7MB in the beginning and 36.4MB in the end (delta: 285.2kB). 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: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of bitwiseXor at line 26. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=10000, i=10000] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 15:14:20,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/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_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0 --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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:14:23,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:14:23,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:14:23,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:14:23,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:14:23,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:14:23,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:14:23,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:14:23,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:14:23,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:14:23,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:14:23,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:14:23,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:14:23,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:14:23,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:14:23,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:14:23,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:14:23,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:14:23,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:14:23,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:14:23,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:14:23,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:14:23,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:14:23,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:14:23,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:14:23,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:14:23,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:14:23,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:14:23,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:14:23,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:14:23,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:14:23,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:14:23,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:14:23,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:14:23,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:14:23,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:14:23,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:14:23,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:14:23,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:14:23,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:14:23,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:14:23,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 15:14:23,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:14:23,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:14:23,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:14:23,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:14:23,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:14:23,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:14:23,191 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:14:23,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:14:23,192 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:14:23,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:14:23,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:14:23,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:14:23,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:14:23,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:14:23,193 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:14:23,193 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:14:23,194 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:14:23,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:14:23,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:14:23,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:14:23,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:14:23,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:14:23,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:14:23,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:14:23,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:23,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:14:23,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:14:23,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:14:23,196 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:14:23,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:14:23,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:14:23,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:14:23,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:14:23,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:14:23,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:14:23,198 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_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2021-11-22 15:14:23,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:14:23,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:14:23,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:14:23,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:14:23,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:14:23,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-11-22 15:14:23,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/94a368877/44556be2ec064aabbaf5bdbc778e825f/FLAG9ec912b63 [2021-11-22 15:14:24,200 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:14:24,201 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-11-22 15:14:24,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/94a368877/44556be2ec064aabbaf5bdbc778e825f/FLAG9ec912b63 [2021-11-22 15:14:24,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/data/94a368877/44556be2ec064aabbaf5bdbc778e825f [2021-11-22 15:14:24,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:14:24,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:14:24,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:24,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:14:24,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:14:24,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0f2374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24, skipping insertion in model container [2021-11-22 15:14:24,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:14:24,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:14:24,736 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_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-11-22 15:14:24,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:24,762 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:14:24,795 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_10218101-f0ad-40ca-b78f-c6d3768c9034/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-11-22 15:14:24,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:14:24,840 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:14:24,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24 WrapperNode [2021-11-22 15:14:24,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:14:24,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:24,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:14:24,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:14:24,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,890 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2021-11-22 15:14:24,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:14:24,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:14:24,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:14:24,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:14:24,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:14:24,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:14:24,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:14:24,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:14:24,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (1/1) ... [2021-11-22 15:14:24,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:14:24,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:14:24,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:14:24,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:14:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:14:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-22 15:14:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:14:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:14:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 15:14:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:14:25,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:14:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:14:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 15:14:25,138 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:14:25,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:14:25,618 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:14:25,626 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:14:25,626 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:14:25,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:25 BoogieIcfgContainer [2021-11-22 15:14:25,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:14:25,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:14:25,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:14:25,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:14:25,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:14:24" (1/3) ... [2021-11-22 15:14:25,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591bea33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:25, skipping insertion in model container [2021-11-22 15:14:25,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:14:24" (2/3) ... [2021-11-22 15:14:25,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591bea33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:25, skipping insertion in model container [2021-11-22 15:14:25,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:25" (3/3) ... [2021-11-22 15:14:25,638 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-11-22 15:14:25,643 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:14:25,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 15:14:25,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:14:25,724 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 [2021-11-22 15:14:25,724 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 15:14:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-11-22 15:14:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:14:25,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:25,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:25,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:14:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-11-22 15:14:25,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:14:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113013218] [2021-11-22 15:14:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:25,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:14:25,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:14:25,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:14:25,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:14:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:25,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 15:14:25,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:14:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:25,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:14:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:25,976 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:14:25,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113013218] [2021-11-22 15:14:25,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113013218] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:25,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:25,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:14:25,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756986188] [2021-11-22 15:14:25,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:25,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:14:25,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:14:26,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:14:26,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:14:26,021 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-22 15:14:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:26,035 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-22 15:14:26,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:14:26,037 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 7 [2021-11-22 15:14:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:26,047 INFO L225 Difference]: With dead ends: 21 [2021-11-22 15:14:26,047 INFO L226 Difference]: Without dead ends: 8 [2021-11-22 15:14:26,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:14:26,055 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:26,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:26,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-22 15:14:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-22 15:14:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 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) [2021-11-22 15:14:26,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-11-22 15:14:26,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-11-22 15:14:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:26,090 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-11-22 15:14:26,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-22 15:14:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-11-22 15:14:26,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 15:14:26,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:26,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:26,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:14:26,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:14:26,307 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:14:26,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:26,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-11-22 15:14:26,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:14:26,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084373128] [2021-11-22 15:14:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:26,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:14:26,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:14:26,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:14:26,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:14:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:14:26,512 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:14:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:14:26,674 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 15:14:26,674 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:14:26,676 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 15:14:26,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:14:26,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:14:26,881 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:14:26,885 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:14:26,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:14:26 BoogieIcfgContainer [2021-11-22 15:14:26,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:14:26,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:14:26,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:14:26,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:14:26,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:25" (3/4) ... [2021-11-22 15:14:26,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:14:26,947 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:14:26,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:14:26,949 INFO L158 Benchmark]: Toolchain (without parser) took 2385.50ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 40.5MB in the beginning and 41.6MB in the end (delta: -1.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,949 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 41.9MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:14:26,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.82ms. Allocated memory is still 60.8MB. Free memory was 40.3MB in the beginning and 43.2MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.90ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:14:26,951 INFO L158 Benchmark]: Boogie Preprocessor took 43.71ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 40.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,951 INFO L158 Benchmark]: RCFGBuilder took 692.72ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 29.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,952 INFO L158 Benchmark]: TraceAbstraction took 1276.09ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 43.7MB in the end (delta: -14.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,953 INFO L158 Benchmark]: Witness Printer took 39.47ms. Allocated memory is still 81.8MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:14:26,955 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 60.8MB. Free memory was 41.9MB in the beginning and 41.9MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.82ms. Allocated memory is still 60.8MB. Free memory was 40.3MB in the beginning and 43.2MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.90ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.71ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 40.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.72ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 29.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1276.09ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 43.7MB in the end (delta: -14.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 39.47ms. Allocated memory is still 81.8MB. Free memory was 43.4MB in the beginning and 41.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=4294957296, \result=NaN, i=4294957296] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 1 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-22 15:14:27,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10218101-f0ad-40ca-b78f-c6d3768c9034/bin/uautomizer-w2VwFs6gM0/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE