./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea ......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7de8352890f1d55270cdee8daa00c3bfaf4226ea .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:03:37,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:03:37,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:03:37,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:03:37,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:03:37,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:03:37,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:03:37,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:03:37,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:03:37,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:03:37,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:03:37,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:03:37,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:03:37,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:03:37,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:03:37,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:03:37,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:03:37,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:03:37,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:03:37,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:03:37,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:03:37,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:03:37,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:03:37,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:03:37,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:03:37,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:03:37,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:03:37,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:03:37,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:03:37,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:03:37,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:03:37,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:03:37,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:03:37,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:03:37,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:03:37,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:03:37,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:03:37,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:03:37,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:03:37,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:03:37,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:03:37,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 08:03:37,138 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:03:37,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:03:37,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:03:37,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:03:37,140 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:03:37,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:03:37,140 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:03:37,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:03:37,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:03:37,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:03:37,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:03:37,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:03:37,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:03:37,142 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:03:37,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:03:37,142 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:03:37,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:03:37,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:03:37,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:03:37,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:03:37,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:03:37,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:03:37,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:03:37,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer 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(__VERIFIER_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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-11-20 08:03:37,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:03:37,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:03:37,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:03:37,308 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:03:37,308 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:03:37,309 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-20 08:03:37,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/b90a12786/b80fd1a7320e4def8c1855d9bad6d7c0/FLAG6077c64f8 [2019-11-20 08:03:37,747 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:03:37,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-20 08:03:37,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/b90a12786/b80fd1a7320e4def8c1855d9bad6d7c0/FLAG6077c64f8 [2019-11-20 08:03:37,765 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/b90a12786/b80fd1a7320e4def8c1855d9bad6d7c0 [2019-11-20 08:03:37,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:03:37,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:03:37,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:03:37,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:03:37,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:03:37,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:37" (1/1) ... [2019-11-20 08:03:37,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464f5586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37, skipping insertion in model container [2019-11-20 08:03:37,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:37" (1/1) ... [2019-11-20 08:03:37,788 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:03:37,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:03:38,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:03:38,084 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:03:38,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:03:38,125 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:03:38,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38 WrapperNode [2019-11-20 08:03:38,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:03:38,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:03:38,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:03:38,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:03:38,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:03:38,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:03:38,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:03:38,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:03:38,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... [2019-11-20 08:03:38,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:03:38,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:03:38,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:03:38,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:03:38,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/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 [2019-11-20 08:03:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:03:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:03:38,352 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:03:38,352 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 08:03:38,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:38 BoogieIcfgContainer [2019-11-20 08:03:38,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:03:38,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:03:38,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:03:38,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:03:38,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:03:37" (1/3) ... [2019-11-20 08:03:38,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f244de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:38, skipping insertion in model container [2019-11-20 08:03:38,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:38" (2/3) ... [2019-11-20 08:03:38,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f244de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:38, skipping insertion in model container [2019-11-20 08:03:38,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:38" (3/3) ... [2019-11-20 08:03:38,360 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-11-20 08:03:38,368 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:03:38,373 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:03:38,382 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:03:38,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:03:38,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:03:38,405 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:03:38,405 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:03:38,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:03:38,406 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:03:38,406 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:03:38,408 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:03:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 08:03:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 08:03:38,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:03:38,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 08:03:38,431 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:03:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:03:38,436 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-11-20 08:03:38,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:03:38,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359952245] [2019-11-20 08:03:38,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:03:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:03:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:03:38,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:03:38,533 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 08:03:38,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:03:38 BoogieIcfgContainer [2019-11-20 08:03:38,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:03:38,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:03:38,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:03:38,547 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:03:38,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:38" (3/4) ... [2019-11-20 08:03:38,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 08:03:38,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:03:38,552 INFO L168 Benchmark]: Toolchain (without parser) took 783.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:03:38,553 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:03:38,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:03:38,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:03:38,555 INFO L168 Benchmark]: Boogie Preprocessor took 15.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:03:38,555 INFO L168 Benchmark]: RCFGBuilder took 177.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:03:38,556 INFO L168 Benchmark]: TraceAbstraction took 191.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:03:38,557 INFO L168 Benchmark]: Witness Printer took 4.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:03:38,560 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -221.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 177.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 191.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x [L19] COND TRUE y >= 0 [L19] y = x / 10. [L9] COND TRUE !(cond) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 5 NumberOfCodeBlocks, 5 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, 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 0.1.24-678e011 [2019-11-20 08:03:40,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:03:40,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:03:40,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:03:40,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:03:40,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:03:40,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:03:40,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:03:40,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:03:40,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:03:40,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:03:40,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:03:40,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:03:40,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:03:40,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:03:40,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:03:40,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:03:40,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:03:40,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:03:40,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:03:40,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:03:40,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:03:40,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:03:40,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:03:40,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:03:40,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:03:40,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:03:40,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:03:40,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:03:40,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:03:40,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:03:40,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:03:40,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:03:40,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:03:40,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:03:40,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:03:40,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:03:40,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:03:40,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:03:40,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:03:40,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:03:40,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 08:03:40,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:03:40,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:03:40,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:03:40,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:03:40,500 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:03:40,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:03:40,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:03:40,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:03:40,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:03:40,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:03:40,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:03:40,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:03:40,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 08:03:40,502 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 08:03:40,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:03:40,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:03:40,502 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:03:40,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:03:40,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:03:40,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:03:40,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:03:40,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:03:40,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:03:40,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:03:40,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:03:40,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:03:40,504 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 08:03:40,505 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 08:03:40,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:03:40,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 08:03:40,505 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer 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(__VERIFIER_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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2019-11-20 08:03:40,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:03:40,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:03:40,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:03:40,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:03:40,875 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:03:40,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-20 08:03:40,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/3c367cdb5/aa16646eba1a4b888097da4a7513db21/FLAG1b5959a1c [2019-11-20 08:03:41,292 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:03:41,292 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/sv-benchmarks/c/float-benchs/zonotope_tight.c [2019-11-20 08:03:41,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/3c367cdb5/aa16646eba1a4b888097da4a7513db21/FLAG1b5959a1c [2019-11-20 08:03:41,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/data/3c367cdb5/aa16646eba1a4b888097da4a7513db21 [2019-11-20 08:03:41,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:03:41,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:03:41,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:03:41,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:03:41,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:03:41,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:41,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d63c699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41, skipping insertion in model container [2019-11-20 08:03:41,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:41,674 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:03:41,694 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:03:41,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:03:41,881 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:03:41,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:03:41,914 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:03:41,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41 WrapperNode [2019-11-20 08:03:41,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:03:41,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:03:41,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:03:41,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:03:41,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:41,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:41,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:03:41,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:03:41,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:03:41,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:03:42,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... [2019-11-20 08:03:42,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:03:42,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:03:42,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:03:42,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:03:42,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/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 [2019-11-20 08:03:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:03:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:03:45,675 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:03:45,675 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 08:03:45,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:45 BoogieIcfgContainer [2019-11-20 08:03:45,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:03:45,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:03:45,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:03:45,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:03:45,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:03:41" (1/3) ... [2019-11-20 08:03:45,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa792b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:45, skipping insertion in model container [2019-11-20 08:03:45,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:41" (2/3) ... [2019-11-20 08:03:45,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa792b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:03:45, skipping insertion in model container [2019-11-20 08:03:45,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:45" (3/3) ... [2019-11-20 08:03:45,684 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2019-11-20 08:03:45,694 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:03:45,699 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:03:45,708 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:03:45,730 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:03:45,730 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:03:45,731 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:03:45,731 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:03:45,731 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:03:45,731 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:03:45,731 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:03:45,732 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:03:45,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 08:03:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 08:03:45,749 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:03:45,750 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 08:03:45,750 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:03:45,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:03:45,756 INFO L82 PathProgramCache]: Analyzing trace with hash 29679878, now seen corresponding path program 1 times [2019-11-20 08:03:45,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:03:45,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654893580] [2019-11-20 08:03:45,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/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 [2019-11-20 08:03:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:03:46,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 08:03:46,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:03:49,493 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0)))) is different from true [2019-11-20 08:03:49,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:03:52,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:04:04,611 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53))))) .cse1) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse1 (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 .cse2) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))))) is different from false [2019-11-20 08:04:15,962 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from false [2019-11-20 08:04:18,155 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_1 .cse0) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53))))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 .cse1) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)))))) is different from true [2019-11-20 08:04:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:04:18,159 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:04:20,446 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from false [2019-11-20 08:04:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:04:21,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654893580] [2019-11-20 08:04:21,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:04:21,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-20 08:04:21,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746091331] [2019-11-20 08:04:21,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 08:04:21,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:04:21,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 08:04:21,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=16, Unknown=5, NotChecked=36, Total=72 [2019-11-20 08:04:21,429 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 9 states. [2019-11-20 08:04:25,820 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse1 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse0))) (and (fp.leq c_ULTIMATE.start_main_~x~0 .cse0) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse1 (_ +zero 11 53))))) is different from false [2019-11-20 08:04:28,047 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse1 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse0))) (and (fp.leq c_ULTIMATE.start_main_~x~0 .cse0) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq .cse1 (_ +zero 11 53))))) is different from true [2019-11-20 08:04:30,280 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq ULTIMATE.start_main_~x~0 .cse0) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~y~0))))) is different from false [2019-11-20 08:04:35,724 WARN L191 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 29 DAG size of output: 5 [2019-11-20 08:04:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:04:35,753 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-20 08:04:35,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 08:04:35,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-11-20 08:04:35,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:04:35,764 INFO L225 Difference]: With dead ends: 18 [2019-11-20 08:04:35,764 INFO L226 Difference]: Without dead ends: 6 [2019-11-20 08:04:35,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=22, Invalid=24, Unknown=8, NotChecked=78, Total=132 [2019-11-20 08:04:35,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-11-20 08:04:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-11-20 08:04:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 08:04:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-11-20 08:04:35,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2019-11-20 08:04:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:04:35,801 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-11-20 08:04:35,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 08:04:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-11-20 08:04:35,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 08:04:35,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:04:35,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 08:04:36,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 08:04:36,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:04:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:04:36,023 INFO L82 PathProgramCache]: Analyzing trace with hash 29739460, now seen corresponding path program 1 times [2019-11-20 08:04:36,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:04:36,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092441231] [2019-11-20 08:04:36,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/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 [2019-11-20 08:04:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:04:36,668 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:04:36,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:04:52,137 WARN L191 SmtUtils]: Spent 13.32 s on a formula simplification that was a NOOP. DAG size: 12 [2019-11-20 08:04:54,215 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2019-11-20 08:04:56,282 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_ULTIMATE.start_main_~y~0) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2019-11-20 08:04:56,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:04:58,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:05:12,900 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2019-11-20 08:05:23,246 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from false [2019-11-20 08:05:25,308 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_2 v_prenex_2))) (and (fp.geq v_prenex_2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_2) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq v_prenex_2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) is different from true [2019-11-20 08:05:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:05:25,310 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:05:50,566 WARN L191 SmtUtils]: Spent 15.87 s on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2019-11-20 08:05:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:05:50,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092441231] [2019-11-20 08:05:50,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:05:50,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-20 08:05:50,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910950278] [2019-11-20 08:05:50,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 08:05:50,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:05:50,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 08:05:50,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=19, Unknown=7, NotChecked=30, Total=72 [2019-11-20 08:05:50,570 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 9 states. [2019-11-20 08:06:23,019 WARN L191 SmtUtils]: Spent 23.73 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-20 08:06:57,932 WARN L191 SmtUtils]: Spent 20.41 s on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2019-11-20 08:07:02,152 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0)))) is different from false [2019-11-20 08:07:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:07:02,159 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-11-20 08:07:02,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 08:07:02,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-11-20 08:07:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:07:02,159 INFO L225 Difference]: With dead ends: 6 [2019-11-20 08:07:02,159 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 08:07:02,161 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 116.4s TimeCoverageRelationStatistics Valid=26, Invalid=31, Unknown=15, NotChecked=60, Total=132 [2019-11-20 08:07:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 08:07:02,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 08:07:02,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 08:07:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 08:07:02,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-20 08:07:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:07:02,162 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:07:02,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 08:07:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 08:07:02,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 08:07:02,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 08:07:02,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 08:07:02,411 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 08:07:02,411 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 08:07:02,411 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 08:07:02,411 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-20 08:07:02,411 INFO L440 ceAbstractionStarter]: At program point L23(lines 11 24) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-20 08:07:02,411 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-11-20 08:07:02,412 INFO L444 ceAbstractionStarter]: For program point L19-2(lines 19 20) no Hoare annotation was computed. [2019-11-20 08:07:02,412 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-20 08:07:02,412 INFO L444 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-20 08:07:02,412 INFO L440 ceAbstractionStarter]: At program point L9-3(line 9) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-20 08:07:02,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:07:02 BoogieIcfgContainer [2019-11-20 08:07:02,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:07:02,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:07:02,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:07:02,423 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:07:02,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:03:45" (3/4) ... [2019-11-20 08:07:02,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 08:07:02,436 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 08:07:02,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 08:07:02,471 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2373be27-1686-46c2-8db8-d3bd0a20a97a/bin/uautomizer/witness.graphml [2019-11-20 08:07:02,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:07:02,473 INFO L168 Benchmark]: Toolchain (without parser) took 200814.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -147.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,473 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:07:02,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.11 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.04 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,475 INFO L168 Benchmark]: Boogie Preprocessor took 127.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 941.7 MB in the beginning and 1.2 GB in the end (delta: -247.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,476 INFO L168 Benchmark]: RCFGBuilder took 3595.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,476 INFO L168 Benchmark]: TraceAbstraction took 196745.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. [2019-11-20 08:07:02,477 INFO L168 Benchmark]: Witness Printer took 48.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:07:02,479 INFO L335 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 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.11 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.04 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 127.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 941.7 MB in the beginning and 1.2 GB in the end (delta: -247.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3595.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 196745.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 196.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 85.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 4 SDslu, 21 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 142.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 108.9s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 6 QuantifiedInterpolants, 1764 SizeOfPredicates, 8 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 12 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...