./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer --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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer --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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:44:16,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:44:16,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:44:17,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:44:17,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:44:17,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:44:17,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:44:17,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:44:17,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:44:17,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:44:17,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:44:17,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:44:17,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:44:17,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:44:17,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:44:17,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:44:17,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:44:17,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:44:17,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:44:17,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:44:17,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:44:17,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:44:17,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:44:17,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:44:17,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:44:17,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:44:17,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:44:17,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:44:17,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:44:17,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:44:17,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:44:17,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:44:17,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:44:17,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:44:17,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:44:17,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:44:17,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:44:17,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:44:17,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:44:17,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:44:17,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:44:17,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:44:17,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:44:17,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:44:17,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:44:17,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:44:17,117 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:44:17,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:44:17,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:44:17,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:44:17,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:44:17,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:44:17,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:44:17,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:44:17,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:44:17,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:44:17,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:44:17,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:44:17,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:44:17,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:44:17,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:44:17,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:44:17,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:44:17,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:44:17,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:44:17,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:44:17,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:44:17,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:44:17,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:44:17,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:44:17,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:44:17,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2020-12-01 15:44:17,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:44:17,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:44:17,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:44:17,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:44:17,539 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:44:17,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-12-01 15:44:17,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/5ce1e82aa/7b89e6d0fffd4defb65fe753ff9b2380/FLAGaf8dc9333 [2020-12-01 15:44:18,303 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:44:18,305 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-12-01 15:44:18,322 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/5ce1e82aa/7b89e6d0fffd4defb65fe753ff9b2380/FLAGaf8dc9333 [2020-12-01 15:44:18,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/5ce1e82aa/7b89e6d0fffd4defb65fe753ff9b2380 [2020-12-01 15:44:18,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:44:18,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:44:18,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:44:18,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:44:18,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:44:18,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:44:18" (1/1) ... [2020-12-01 15:44:18,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb620a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:18, skipping insertion in model container [2020-12-01 15:44:18,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:44:18" (1/1) ... [2020-12-01 15:44:18,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:44:18,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:44:19,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:44:19,030 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:44:19,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:44:19,071 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:44:19,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19 WrapperNode [2020-12-01 15:44:19,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:44:19,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:44:19,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:44:19,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:44:19,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:44:19,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:44:19,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:44:19,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:44:19,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... [2020-12-01 15:44:19,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:44:19,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:44:19,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:44:19,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:44:19,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/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 [2020-12-01 15:44:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:44:19,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:44:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:44:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:44:19,610 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:44:19,611 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 15:44:19,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:19 BoogieIcfgContainer [2020-12-01 15:44:19,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:44:19,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:44:19,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:44:19,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:44:19,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:44:18" (1/3) ... [2020-12-01 15:44:19,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63aedfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:44:19, skipping insertion in model container [2020-12-01 15:44:19,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:19" (2/3) ... [2020-12-01 15:44:19,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63aedfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:44:19, skipping insertion in model container [2020-12-01 15:44:19,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:19" (3/3) ... [2020-12-01 15:44:19,627 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2020-12-01 15:44:19,645 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:44:19,649 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:44:19,668 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:44:19,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:44:19,715 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:44:19,716 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:44:19,716 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:44:19,716 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:44:19,716 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:44:19,717 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:44:19,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:44:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-01 15:44:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:44:19,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:44:19,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:44:19,744 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:44:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:44:19,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-12-01 15:44:19,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:44:19,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505176288] [2020-12-01 15:44:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:44:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:44:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:44:19,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505176288] [2020-12-01 15:44:19,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:44:19,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:44:19,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757044670] [2020-12-01 15:44:19,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:44:19,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:44:20,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:44:20,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:44:20,017 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-12-01 15:44:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:44:20,035 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-12-01 15:44:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:44:20,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:44:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:44:20,048 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:44:20,048 INFO L226 Difference]: Without dead ends: 8 [2020-12-01 15:44:20,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:44:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-01 15:44:20,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-01 15:44:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:44:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-01 15:44:20,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-12-01 15:44:20,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:44:20,091 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-01 15:44:20,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:44:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-01 15:44:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:44:20,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:44:20,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:44:20,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:44:20,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:44:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:44:20,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-12-01 15:44:20,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:44:20,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526162923] [2020-12-01 15:44:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:44:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:44:20,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:44:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:44:20,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:44:20,164 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:44:20,164 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:44:20,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:44:20,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:44:20 BoogieIcfgContainer [2020-12-01 15:44:20,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:44:20,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:44:20,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:44:20,201 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:44:20,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:19" (3/4) ... [2020-12-01 15:44:20,206 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:44:20,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:44:20,209 INFO L168 Benchmark]: Toolchain (without parser) took 1544.47 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.3 MB in the beginning and 70.3 MB in the end (delta: -24.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:44:20,210 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:44:20,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.33 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 69.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:20,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 67.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:20,213 INFO L168 Benchmark]: Boogie Preprocessor took 37.35 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 66.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:20,214 INFO L168 Benchmark]: RCFGBuilder took 456.77 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 56.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:20,215 INFO L168 Benchmark]: TraceAbstraction took 583.31 ms. Allocated memory is still 92.3 MB. Free memory was 56.2 MB in the beginning and 70.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:44:20,215 INFO L168 Benchmark]: Witness Printer took 5.63 ms. Allocated memory is still 92.3 MB. Free memory is still 70.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:44:20,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 48.0 MB in the beginning and 47.9 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 403.33 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 69.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.15 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 67.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.35 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 66.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 456.77 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 56.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 583.31 ms. Allocated memory is still 92.3 MB. Free memory was 56.2 MB in the beginning and 70.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.63 ms. Allocated memory is still 92.3 MB. Free memory is still 70.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:44:23,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:44:23,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:44:23,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:44:23,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:44:23,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:44:23,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:44:23,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:44:23,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:44:23,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:44:23,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:44:23,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:44:23,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:44:23,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:44:23,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:44:23,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:44:23,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:44:23,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:44:23,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:44:23,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:44:23,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:44:23,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:44:23,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:44:23,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:44:23,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:44:23,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:44:23,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:44:23,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:44:23,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:44:23,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:44:23,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:44:23,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:44:23,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:44:23,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:44:23,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:44:23,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:44:23,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:44:23,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:44:23,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:44:23,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:44:23,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:44:23,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:44:23,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:44:23,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:44:23,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:44:23,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:44:23,265 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:44:23,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:44:23,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:44:23,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:44:23,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:44:23,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:44:23,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:44:23,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:44:23,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:44:23,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:44:23,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:44:23,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:44:23,271 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:44:23,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:44:23,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:44:23,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:44:23,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:44:23,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:44:23,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:44:23,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:44:23,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:44:23,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:44:23,275 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:44:23,275 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:44:23,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:44:23,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:44:23,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:44:23,277 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2020-12-01 15:44:23,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:44:23,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:44:23,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:44:23,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:44:23,760 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:44:23,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-12-01 15:44:23,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/491777251/aa63ba9a037e4a299d8a155cfda4eb9c/FLAG3a3a32a4f [2020-12-01 15:44:24,528 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:44:24,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-12-01 15:44:24,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/491777251/aa63ba9a037e4a299d8a155cfda4eb9c/FLAG3a3a32a4f [2020-12-01 15:44:24,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/data/491777251/aa63ba9a037e4a299d8a155cfda4eb9c [2020-12-01 15:44:24,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:44:24,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:44:24,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:44:24,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:44:24,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:44:24,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:44:24" (1/1) ... [2020-12-01 15:44:24,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b30bae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:24, skipping insertion in model container [2020-12-01 15:44:24,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:44:24" (1/1) ... [2020-12-01 15:44:24,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:44:24,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:44:25,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:44:25,242 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:44:25,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:44:25,311 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:44:25,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25 WrapperNode [2020-12-01 15:44:25,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:44:25,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:44:25,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:44:25,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:44:25,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:44:25,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:44:25,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:44:25,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:44:25,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... [2020-12-01 15:44:25,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:44:25,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:44:25,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:44:25,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:44:25,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/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 [2020-12-01 15:44:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:44:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:44:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:44:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:44:28,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:44:28,138 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 15:44:28,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:28 BoogieIcfgContainer [2020-12-01 15:44:28,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:44:28,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:44:28,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:44:28,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:44:28,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:44:24" (1/3) ... [2020-12-01 15:44:28,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2e29cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:44:28, skipping insertion in model container [2020-12-01 15:44:28,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:44:25" (2/3) ... [2020-12-01 15:44:28,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2e29cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:44:28, skipping insertion in model container [2020-12-01 15:44:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:28" (3/3) ... [2020-12-01 15:44:28,151 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2020-12-01 15:44:28,166 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:44:28,169 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:44:28,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:44:28,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:44:28,205 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:44:28,205 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:44:28,205 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:44:28,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:44:28,206 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:44:28,206 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:44:28,206 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:44:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-01 15:44:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:44:28,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:44:28,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:44:28,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:44:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:44:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-12-01 15:44:28,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:44:28,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223378789] [2020-12-01 15:44:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/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 [2020-12-01 15:44:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:44:28,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:44:28,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:44:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:44:28,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:44:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:44:28,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223378789] [2020-12-01 15:44:28,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:44:28,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:44:28,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445102506] [2020-12-01 15:44:28,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:44:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:44:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:44:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:44:29,005 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-12-01 15:44:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:44:29,020 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-12-01 15:44:29,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:44:29,021 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-01 15:44:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:44:29,030 INFO L225 Difference]: With dead ends: 21 [2020-12-01 15:44:29,030 INFO L226 Difference]: Without dead ends: 8 [2020-12-01 15:44:29,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:44:29,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-01 15:44:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-01 15:44:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:44:29,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-01 15:44:29,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-12-01 15:44:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:44:29,066 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-01 15:44:29,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:44:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-01 15:44:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:44:29,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:44:29,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:44:29,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:44:29,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:44:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:44:29,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-12-01 15:44:29,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:44:29,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680013273] [2020-12-01 15:44:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/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 [2020-12-01 15:58:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:42,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:02,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:02,145 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 15:59:02,145 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:59:02,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:59:02,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:59:02 BoogieIcfgContainer [2020-12-01 15:59:02,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:59:02,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:59:02,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:59:02,375 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:59:02,375 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:44:28" (3/4) ... [2020-12-01 15:59:02,378 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:59:02,423 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2c8cf0f0-5fd8-4d09-bba6-43ecc7bb2953/bin/uautomizer/witness.graphml [2020-12-01 15:59:02,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:59:02,426 INFO L168 Benchmark]: Toolchain (without parser) took 877518.16 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 32.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,426 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.2 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:59:02,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 24.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.06 ms. Allocated memory is still 56.6 MB. Free memory was 24.7 MB in the beginning and 23.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:59:02,429 INFO L168 Benchmark]: Boogie Preprocessor took 62.44 ms. Allocated memory is still 56.6 MB. Free memory was 23.2 MB in the beginning and 22.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,429 INFO L168 Benchmark]: RCFGBuilder took 2709.39 ms. Allocated memory is still 56.6 MB. Free memory was 22.0 MB in the beginning and 30.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,430 INFO L168 Benchmark]: TraceAbstraction took 874230.66 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 33.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,431 INFO L168 Benchmark]: Witness Printer took 49.33 ms. Allocated memory is still 69.2 MB. Free memory was 33.7 MB in the beginning and 32.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:59:02,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 38.2 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 24.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.06 ms. Allocated memory is still 56.6 MB. Free memory was 24.7 MB in the beginning and 23.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.44 ms. Allocated memory is still 56.6 MB. Free memory was 23.2 MB in the beginning and 22.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2709.39 ms. Allocated memory is still 56.6 MB. Free memory was 22.0 MB in the beginning and 30.5 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 874230.66 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 33.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Witness Printer took 49.33 ms. Allocated memory is still 69.2 MB. Free memory was 33.7 MB in the beginning and 32.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 874.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 854.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...