./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1e66de05904ac2de77ce48b56d6931182ba71ee4 ........................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1e66de05904ac2de77ce48b56d6931182ba71ee4 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:11:50,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:11:50,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:11:50,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:11:50,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:11:50,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:11:50,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:11:50,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:11:50,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:11:50,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:11:50,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:11:50,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:11:50,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:11:50,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:11:50,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:11:50,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:11:50,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:11:50,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:11:50,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:11:50,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:11:50,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:11:50,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:11:50,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:11:50,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:11:50,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:11:50,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:11:50,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:11:50,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:11:50,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:11:50,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:11:50,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:11:50,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:11:50,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:11:50,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:11:50,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:11:50,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:11:50,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:11:50,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:11:50,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:11:50,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:11:50,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:11:50,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:11:50,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:11:50,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:11:50,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:11:50,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:11:50,369 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:11:50,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:11:50,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:11:50,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:11:50,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:11:50,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:11:50,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:11:50,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:11:50,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:11:50,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:11:50,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:11:50,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:11:50,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:11:50,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:11:50,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:11:50,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:11:50,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:11:50,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:11:50,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:11:50,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:11:50,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:11:50,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:11:50,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:11:50,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:11:50,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:11:50,378 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e66de05904ac2de77ce48b56d6931182ba71ee4 [2020-12-02 14:11:51,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:11:51,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:11:51,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:11:51,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:11:51,246 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:11:51,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float3.c [2020-12-02 14:11:51,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98973e701/3cf2d27e9db542e08778d399633817d3/FLAGa37ab6061 [2020-12-02 14:11:52,223 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:11:52,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c [2020-12-02 14:11:52,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98973e701/3cf2d27e9db542e08778d399633817d3/FLAGa37ab6061 [2020-12-02 14:11:52,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98973e701/3cf2d27e9db542e08778d399633817d3 [2020-12-02 14:11:52,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:11:52,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:11:52,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:11:52,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:11:52,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:11:52,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:52" (1/1) ... [2020-12-02 14:11:52,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10254121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:52, skipping insertion in model container [2020-12-02 14:11:52,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:11:52" (1/1) ... [2020-12-02 14:11:52,663 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:11:52,692 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:11:53,145 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c[465,478] [2020-12-02 14:11:53,156 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:11:53,184 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:11:53,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c[465,478] [2020-12-02 14:11:53,227 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:11:53,265 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:11:53,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53 WrapperNode [2020-12-02 14:11:53,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:11:53,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:11:53,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:11:53,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:11:53,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:11:53,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:11:53,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:11:53,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:11:53,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... [2020-12-02 14:11:53,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:11:53,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:11:53,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:11:53,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:11:53,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:11:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:11:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:11:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:11:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:11:54,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:11:54,121 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:11:54,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:54 BoogieIcfgContainer [2020-12-02 14:11:54,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:11:54,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:11:54,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:11:54,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:11:54,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:11:52" (1/3) ... [2020-12-02 14:11:54,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4351e523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:54, skipping insertion in model container [2020-12-02 14:11:54,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:11:53" (2/3) ... [2020-12-02 14:11:54,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4351e523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:11:54, skipping insertion in model container [2020-12-02 14:11:54,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:54" (3/3) ... [2020-12-02 14:11:54,139 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2020-12-02 14:11:54,157 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:11:54,161 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:11:54,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:11:54,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:11:54,220 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:11:54,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:11:54,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:11:54,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:11:54,221 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:11:54,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:11:54,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:11:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-02 14:11:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-02 14:11:54,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:11:54,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:11:54,248 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:11:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:11:54,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-12-02 14:11:54,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:11:54,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998969453] [2020-12-02 14:11:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:11:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:11:54,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:11:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:11:54,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:11:54,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:11:54,531 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:11:54,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:11:54,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:11:54 BoogieIcfgContainer [2020-12-02 14:11:54,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:11:54,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:11:54,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:11:54,579 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:11:54,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:11:54" (3/4) ... [2020-12-02 14:11:54,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:11:54,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:11:54,597 INFO L168 Benchmark]: Toolchain (without parser) took 2027.45 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 35.3 MB in the end (delta: -13.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:11:54,601 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:11:54,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.01 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 21.2 MB in the end (delta: 13.9 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:11:54,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.50 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 19.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:11:54,607 INFO L168 Benchmark]: Boogie Preprocessor took 73.91 ms. Allocated memory is still 44.0 MB. Free memory was 19.7 MB in the beginning and 28.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:11:54,608 INFO L168 Benchmark]: RCFGBuilder took 666.36 ms. Allocated memory is still 44.0 MB. Free memory was 28.6 MB in the beginning and 27.8 MB in the end (delta: 825.1 kB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:11:54,612 INFO L168 Benchmark]: TraceAbstraction took 449.53 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 35.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:11:54,613 INFO L168 Benchmark]: Witness Printer took 12.30 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.3 MB in the end (delta: 541.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:11:54,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 685.01 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 21.2 MB in the end (delta: 13.9 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.50 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 19.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.91 ms. Allocated memory is still 44.0 MB. Free memory was 19.7 MB in the beginning and 28.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 666.36 ms. Allocated memory is still 44.0 MB. Free memory was 28.6 MB in the beginning and 27.8 MB in the end (delta: 825.1 kB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 449.53 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 35.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 12.30 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.3 MB in the end (delta: 541.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 26]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 22, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 26. Possible FailurePath: [L6] double d = 0.0; VAL [d=0] [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 VAL [d=0] [L10] d = 1.0 VAL [d=1] [L22] d += (x == 2) [L24] d += (x > 3) [L26] COND TRUE !(d == 2.0) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 14:11:58,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:11:58,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:11:58,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:11:58,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:11:58,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:11:58,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:11:58,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:11:58,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:11:58,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:11:58,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:11:58,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:11:58,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:11:58,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:11:58,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:11:58,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:11:58,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:11:58,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:11:58,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:11:58,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:11:58,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:11:58,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:11:58,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:11:58,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:11:58,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:11:58,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:11:58,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:11:58,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:11:58,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:11:58,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:11:58,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:11:58,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:11:58,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:11:58,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:11:58,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:11:58,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:11:58,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:11:58,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:11:58,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:11:58,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:11:58,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:11:58,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:11:58,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:11:58,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:11:58,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:11:58,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:11:58,902 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:11:58,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:11:58,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:11:58,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:11:58,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:11:58,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:11:58,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:11:58,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:11:58,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:11:58,905 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:11:58,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:11:58,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:11:58,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:11:58,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:11:58,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:11:58,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:11:58,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:11:58,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:11:58,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:11:58,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:11:58,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:11:58,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:11:58,913 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:11:58,914 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:11:58,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:11:58,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:11:58,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:11:58,915 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e66de05904ac2de77ce48b56d6931182ba71ee4 [2020-12-02 14:11:59,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:11:59,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:11:59,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:11:59,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:11:59,574 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:11:59,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float3.c [2020-12-02 14:11:59,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8004a6046/e12af442c63c451c8fa551655a8179bc/FLAGc78bb00b2 [2020-12-02 14:12:00,764 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:12:00,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c [2020-12-02 14:12:00,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8004a6046/e12af442c63c451c8fa551655a8179bc/FLAGc78bb00b2 [2020-12-02 14:12:01,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8004a6046/e12af442c63c451c8fa551655a8179bc [2020-12-02 14:12:01,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:12:01,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:12:01,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:12:01,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:12:01,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:12:01,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3694a4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01, skipping insertion in model container [2020-12-02 14:12:01,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,123 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:12:01,145 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:12:01,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c[465,478] [2020-12-02 14:12:01,414 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:12:01,434 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:12:01,452 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float3.c[465,478] [2020-12-02 14:12:01,453 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:12:01,473 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:12:01,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01 WrapperNode [2020-12-02 14:12:01,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:12:01,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:12:01,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:12:01,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:12:01,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:12:01,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:12:01,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:12:01,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:12:01,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... [2020-12-02 14:12:01,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:12:01,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:12:01,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:12:01,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:12:01,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:12:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 14:12:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:12:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:12:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:12:01,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:12:04,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:12:04,222 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:12:04,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:04 BoogieIcfgContainer [2020-12-02 14:12:04,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:12:04,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:12:04,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:12:04,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:12:04,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:12:01" (1/3) ... [2020-12-02 14:12:04,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a50cb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:04, skipping insertion in model container [2020-12-02 14:12:04,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:01" (2/3) ... [2020-12-02 14:12:04,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a50cb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:04, skipping insertion in model container [2020-12-02 14:12:04,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:04" (3/3) ... [2020-12-02 14:12:04,235 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2020-12-02 14:12:04,253 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:12:04,258 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:12:04,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:12:04,308 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:12:04,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:12:04,309 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:12:04,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:12:04,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:12:04,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:12:04,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:12:04,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:12:04,326 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-02 14:12:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-02 14:12:04,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:12:04,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:12:04,334 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:12:04,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:12:04,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-12-02 14:12:04,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:12:04,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695830977] [2020-12-02 14:12:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 14:12:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:12:04,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:12:04,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:12:05,713 WARN L197 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:12:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:05,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:12:05,923 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,929 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,931 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,934 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,937 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:05,941 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,945 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,947 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:05,959 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,962 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:05,964 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:08,021 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (bvsgt c_ULTIMATE.start_main_~x~0 (_ bv3 32))) (.cse4 (= (_ bv2 32) c_ULTIMATE.start_main_~x~0))) (let ((.cse7 (not .cse4)) (.cse6 (not .cse5))) (and (or (forall ((|v_ULTIMATE.start_main_#t~nondet10_5| (_ BitVec 64)) (v_~d~0_9 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_5|))) (.cse1 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (.cse2 (fp ((_ extract 63 63) v_~d~0_9) ((_ extract 62 52) v_~d~0_9) ((_ extract 51 0) v_~d~0_9))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= (fp.add c_~CRM .cse0 .cse1) .cse2)) (not (= .cse0 (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) .cse1))) (not (= .cse3 ((_ to_fp 11 53) c_~CRM 2.0))) (fp.eq .cse2 .cse3)))) .cse4 .cse5) (or .cse6 .cse7 (forall ((|v_ULTIMATE.start_main_#t~nondet10_5| (_ BitVec 64)) (v_~d~0_9 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64))) (let ((.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_5|))) (.cse8 ((_ to_fp 11 53) c_~CRM (_ bv1 32))) (.cse10 (fp ((_ extract 63 63) v_~d~0_9) ((_ extract 62 52) v_~d~0_9) ((_ extract 51 0) v_~d~0_9))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) .cse8) .cse9)) (not (= (fp.add c_~CRM .cse9 .cse8) .cse10)) (not (= .cse11 ((_ to_fp 11 53) c_~CRM 2.0))) (fp.eq .cse10 .cse11))))) (or .cse7 (forall ((|v_ULTIMATE.start_main_#t~nondet10_5| (_ BitVec 64)) (v_~d~0_9 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64))) (let ((.cse12 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_5|))) (.cse13 (fp ((_ extract 63 63) v_~d~0_9) ((_ extract 62 52) v_~d~0_9) ((_ extract 51 0) v_~d~0_9))) (.cse14 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) ((_ to_fp 11 53) c_~CRM (_ bv1 32))) .cse12)) (not (= (fp.add c_~CRM .cse12 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) .cse13)) (not (= .cse14 ((_ to_fp 11 53) c_~CRM 2.0))) (fp.eq .cse13 .cse14)))) .cse5) (or .cse6 (forall ((|v_ULTIMATE.start_main_#t~nondet10_5| (_ BitVec 64)) (v_~d~0_9 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64))) (let ((.cse15 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_5|))) (.cse16 (fp ((_ extract 63 63) v_~d~0_9) ((_ extract 62 52) v_~d~0_9) ((_ extract 51 0) v_~d~0_9))) (.cse17 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|)))) (or (not (= (fp.add c_~CRM .cse15 ((_ to_fp 11 53) c_~CRM (_ bv1 32))) .cse16)) (not (= .cse15 (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))))) (not (= .cse17 ((_ to_fp 11 53) c_~CRM 2.0))) (fp.eq .cse16 .cse17)))) .cse4)))) is different from false [2020-12-02 14:12:08,123 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-12-02 14:12:10,224 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse11 (bvsgt c_ULTIMATE.start_main_~x~0 (_ bv3 32))) (.cse17 (= (_ bv2 32) c_ULTIMATE.start_main_~x~0))) (let ((.cse6 (not .cse17)) (.cse0 (not .cse11))) (and (or .cse0 (forall ((v_prenex_6 (_ BitVec 64)) (v_prenex_4 (_ BitVec 64)) (v_prenex_5 (_ BitVec 64)) (v_~d~0_10 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_~d~0_10) ((_ extract 62 52) v_~d~0_10) ((_ extract 51 0) v_~d~0_10))) (.cse3 (fp ((_ extract 63 63) v_prenex_6) ((_ extract 62 52) v_prenex_6) ((_ extract 51 0) v_prenex_6))) (.cse2 (fp ((_ extract 63 63) v_prenex_5) ((_ extract 62 52) v_prenex_5) ((_ extract 51 0) v_prenex_5))) (.cse4 (fp ((_ extract 63 63) v_prenex_4) ((_ extract 62 52) v_prenex_4) ((_ extract 51 0) v_prenex_4))) (.cse5 ((_ to_fp 11 53) c_~CRM (_ bv1 32)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1)) (fp.eq .cse2 .cse3) (not (= .cse4 (fp.add c_~CRM .cse1 .cse5))) (not (= .cse3 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= .cse2 (fp.add c_~CRM .cse4 .cse5)))))) .cse6) (or .cse6 (forall ((v_~d~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_5| (_ BitVec 64)) (v_~d~0_9 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64))) (let ((.cse8 (fp ((_ extract 63 63) v_~d~0_9) ((_ extract 62 52) v_~d~0_9) ((_ extract 51 0) v_~d~0_9))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_5|))) (.cse9 (fp ((_ extract 63 63) v_~d~0_10) ((_ extract 62 52) v_~d~0_10) ((_ extract 51 0) v_~d~0_10)))) (or (not (= (fp.add c_~CRM .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) .cse8)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse9)) (not (= .cse10 ((_ to_fp 11 53) c_~CRM 2.0))) (fp.eq .cse8 .cse10) (not (= .cse7 (fp.add c_~CRM .cse9 ((_ to_fp 11 53) c_~CRM (_ bv1 32)))))))) .cse11) (or (forall ((v_~d~0_10 (_ BitVec 64)) (v_prenex_2 (_ BitVec 64)) (v_prenex_3 (_ BitVec 64)) (v_prenex_1 (_ BitVec 64))) (let ((.cse16 (fp ((_ extract 63 63) v_prenex_3) ((_ extract 62 52) v_prenex_3) ((_ extract 51 0) v_prenex_3))) (.cse12 (fp ((_ extract 63 63) v_~d~0_10) ((_ extract 62 52) v_~d~0_10) ((_ extract 51 0) v_~d~0_10))) (.cse15 (fp ((_ extract 63 63) v_prenex_2) ((_ extract 62 52) v_prenex_2) ((_ extract 51 0) v_prenex_2))) (.cse14 (fp ((_ extract 63 63) v_prenex_1) ((_ extract 62 52) v_prenex_1) ((_ extract 51 0) v_prenex_1))) (.cse13 ((_ to_fp 11 53) c_~CRM (_ bv0 32)))) (or (not (= (fp.add c_~CRM .cse12 .cse13) .cse14)) (fp.eq .cse15 .cse16) (not (= ((_ to_fp 11 53) c_~CRM 2.0) .cse16)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse12)) (not (= .cse15 (fp.add c_~CRM .cse14 .cse13)))))) .cse17 .cse11) (or .cse0 (forall ((v_prenex_7 (_ BitVec 64)) (v_~d~0_10 (_ BitVec 64)) (v_prenex_8 (_ BitVec 64)) (v_prenex_9 (_ BitVec 64))) (let ((.cse18 (fp ((_ extract 63 63) v_~d~0_10) ((_ extract 62 52) v_~d~0_10) ((_ extract 51 0) v_~d~0_10))) (.cse19 (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))) (.cse21 (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8))) (.cse20 (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse18)) (not (= (fp.add c_~CRM .cse18 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) .cse19)) (not (= .cse20 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= .cse21 (fp.add c_~CRM .cse19 ((_ to_fp 11 53) c_~CRM (_ bv1 32))))) (fp.eq .cse21 .cse20)))) .cse17)))) is different from true [2020-12-02 14:12:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:10,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695830977] [2020-12-02 14:12:10,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:12:10,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 14:12:10,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504906376] [2020-12-02 14:12:10,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 14:12:10,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:12:10,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 14:12:10,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=29, Unknown=2, NotChecked=22, Total=72 [2020-12-02 14:12:10,468 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 9 states. [2020-12-02 14:12:13,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:12:13,776 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-02 14:12:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 14:12:13,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2020-12-02 14:12:13,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:12:13,788 INFO L225 Difference]: With dead ends: 19 [2020-12-02 14:12:13,789 INFO L226 Difference]: Without dead ends: 8 [2020-12-02 14:12:13,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=19, Invalid=29, Unknown=2, NotChecked=22, Total=72 [2020-12-02 14:12:13,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-02 14:12:13,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-02 14:12:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-02 14:12:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-02 14:12:13,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-12-02 14:12:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:12:13,828 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-02 14:12:13,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 14:12:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-02 14:12:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-02 14:12:13,829 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:12:13,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:12:14,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:12:14,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:12:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:12:14,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812423, now seen corresponding path program 1 times [2020-12-02 14:12:14,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:12:14,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840637806] [2020-12-02 14:12:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 14:12:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:12:14,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 14:12:14,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:12:18,091 WARN L197 SmtUtils]: Spent 3.23 s on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:12:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:18,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:12:18,414 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,416 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,417 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,419 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,421 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:18,423 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,425 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,426 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:18,432 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,434 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:12:18,435 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 14:12:20,481 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (bvsgt c_ULTIMATE.start_main_~x~0 (_ bv3 32))) (.cse0 (= (_ bv2 32) c_ULTIMATE.start_main_~x~0))) (let ((.cse7 (not .cse0)) (.cse6 (not .cse1))) (and (or .cse0 .cse1 (forall ((|v_ULTIMATE.start_main_#t~nondet10_7| (_ BitVec 64)) (v_~d~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_12| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_12|))) (.cse2 (fp ((_ extract 63 63) v_~d~0_12) ((_ extract 62 52) v_~d~0_12) ((_ extract 51 0) v_~d~0_12))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_7|))) (.cse5 ((_ to_fp 11 53) c_~CRM (_ bv0 32)))) (or (fp.eq .cse2 .cse3) (not (= .cse3 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= (fp.add c_~CRM .cse4 .cse5) .cse2)) (not (= .cse4 (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) .cse5))))))) (or .cse6 .cse7 (forall ((|v_ULTIMATE.start_main_#t~nondet10_7| (_ BitVec 64)) (v_~d~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_12| (_ BitVec 64))) (let ((.cse8 (fp ((_ extract 63 63) v_~d~0_12) ((_ extract 62 52) v_~d~0_12) ((_ extract 51 0) v_~d~0_12))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_12|))) (.cse11 ((_ to_fp 11 53) c_~CRM (_ bv1 32))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_7|)))) (or (fp.eq .cse8 .cse9) (not (= (fp.add c_~CRM .cse10 .cse11) .cse8)) (not (= .cse9 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) .cse11) .cse10)))))) (or .cse7 .cse1 (forall ((|v_ULTIMATE.start_main_#t~nondet10_7| (_ BitVec 64)) (v_~d~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_12| (_ BitVec 64))) (let ((.cse13 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_12|))) (.cse12 (fp ((_ extract 63 63) v_~d~0_12) ((_ extract 62 52) v_~d~0_12) ((_ extract 51 0) v_~d~0_12))) (.cse14 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_7|)))) (or (fp.eq .cse12 .cse13) (not (= .cse13 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= (fp.add c_~CRM .cse14 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) .cse12)) (not (= (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) ((_ to_fp 11 53) c_~CRM (_ bv1 32))) .cse14)))))) (or .cse6 (forall ((|v_ULTIMATE.start_main_#t~nondet10_7| (_ BitVec 64)) (v_~d~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_12| (_ BitVec 64))) (let ((.cse15 (fp ((_ extract 63 63) v_~d~0_12) ((_ extract 62 52) v_~d~0_12) ((_ extract 51 0) v_~d~0_12))) (.cse16 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_12|))) (.cse17 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_7|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_7|)))) (or (fp.eq .cse15 .cse16) (not (= (fp.add c_~CRM .cse17 ((_ to_fp 11 53) c_~CRM (_ bv1 32))) .cse15)) (not (= .cse16 ((_ to_fp 11 53) c_~CRM 2.0))) (not (= .cse17 (fp.add c_~CRM (fp ((_ extract 63 63) c_~d~0) ((_ extract 62 52) c_~d~0) ((_ extract 51 0) c_~d~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32)))))))) .cse0)))) is different from false [2020-12-02 14:12:22,312 INFO L639 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-12-02 14:12:30,512 WARN L197 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 130 DAG size of output: 6 [2020-12-02 14:12:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:12:30,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840637806] [2020-12-02 14:12:30,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:12:30,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 14:12:30,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710074967] [2020-12-02 14:12:30,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 14:12:30,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:12:30,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 14:12:30,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=37, Unknown=2, NotChecked=12, Total=72 [2020-12-02 14:12:30,528 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 9 states. [2020-12-02 14:12:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:12:32,867 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-12-02 14:12:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 14:12:32,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2020-12-02 14:12:32,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:12:32,894 INFO L225 Difference]: With dead ends: 8 [2020-12-02 14:12:32,894 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:12:32,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=21, Invalid=37, Unknown=2, NotChecked=12, Total=72 [2020-12-02 14:12:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:12:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:12:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:12:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:12:32,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-02 14:12:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:12:32,897 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:12:32,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 14:12:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:12:32,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:12:33,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 14:12:33,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:12:33,114 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:12:33,114 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:12:33,115 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:12:33,116 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:12:33,116 INFO L262 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-12-02 14:12:33,116 INFO L262 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-12-02 14:12:33,117 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2020-12-02 14:12:33,117 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-12-02 14:12:33,117 INFO L262 CegarLoopResult]: For program point L17-2(lines 17 18) no Hoare annotation was computed. [2020-12-02 14:12:33,117 INFO L262 CegarLoopResult]: For program point L13(lines 13 27) no Hoare annotation was computed. [2020-12-02 14:12:33,117 INFO L262 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-12-02 14:12:33,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:12:33 BoogieIcfgContainer [2020-12-02 14:12:33,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:12:33,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:12:33,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:12:33,126 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:12:33,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:04" (3/4) ... [2020-12-02 14:12:33,131 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:12:33,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-02 14:12:33,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-02 14:12:33,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:12:33,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:12:33,210 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:12:33,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:12:33,214 INFO L168 Benchmark]: Toolchain (without parser) took 32166.18 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 23.4 MB in the beginning and 35.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:33,215 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 28.0 MB in the end (delta: 22.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:12:33,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.82 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 22.3 MB in the end (delta: 901.7 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:33,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.68 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 20.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:33,219 INFO L168 Benchmark]: Boogie Preprocessor took 52.91 ms. Allocated memory is still 46.1 MB. Free memory was 20.9 MB in the beginning and 19.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:12:33,222 INFO L168 Benchmark]: RCFGBuilder took 2624.27 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 19.6 MB in the beginning and 32.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:33,224 INFO L168 Benchmark]: TraceAbstraction took 28898.57 ms. Allocated memory is still 58.7 MB. Free memory was 31.8 MB in the beginning and 37.7 MB in the end (delta: -6.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:12:33,225 INFO L168 Benchmark]: Witness Printer took 86.22 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 35.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 14:12:33,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 28.0 MB in the end (delta: 22.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 417.82 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 22.3 MB in the end (delta: 901.7 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.68 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 20.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.91 ms. Allocated memory is still 46.1 MB. Free memory was 20.9 MB in the beginning and 19.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2624.27 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 19.6 MB in the beginning and 32.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28898.57 ms. Allocated memory is still 58.7 MB. Free memory was 31.8 MB in the beginning and 37.7 MB in the end (delta: -6.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 86.22 ms. Allocated memory is still 58.7 MB. Free memory was 37.6 MB in the beginning and 35.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 8 SDslu, 21 SDs, 0 SdLazy, 23 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 5 QuantifiedInterpolants, 7476 SizeOfPredicates, 6 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...