./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb .................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:06:03,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:06:03,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:06:03,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:06:03,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:06:03,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:06:03,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:06:03,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:06:03,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:06:03,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:06:03,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:06:03,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:06:03,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:06:03,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:06:03,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:06:03,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:06:03,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:06:03,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:06:03,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:06:03,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:06:03,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:06:03,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:06:03,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:06:03,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:06:04,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:06:04,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:06:04,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:06:04,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:06:04,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:06:04,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:06:04,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:06:04,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:06:04,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:06:04,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:06:04,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:06:04,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:06:04,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:06:04,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:06:04,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:06:04,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:06:04,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:06:04,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:06:04,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:06:04,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:06:04,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:06:04,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:06:04,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:06:04,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:06:04,034 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:06:04,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:06:04,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:06:04,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:06:04,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:06:04,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:06:04,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:06:04,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:06:04,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:06:04,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:06:04,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:04,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:06:04,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:06:04,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:06:04,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:06:04,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:06:04,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:06:04,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:06:04,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb [2021-08-26 00:06:04,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:06:04,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:06:04,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:06:04,386 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:06:04,386 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:06:04,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-08-26 00:06:04,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1250ccb/dfba7d4d9d1546f4bad2b0de9ecaf49c/FLAGd95300230 [2021-08-26 00:06:04,800 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:06:04,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-08-26 00:06:04,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1250ccb/dfba7d4d9d1546f4bad2b0de9ecaf49c/FLAGd95300230 [2021-08-26 00:06:04,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f1250ccb/dfba7d4d9d1546f4bad2b0de9ecaf49c [2021-08-26 00:06:04,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:06:04,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:06:04,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:04,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:06:04,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:06:04,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:04" (1/1) ... [2021-08-26 00:06:04,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26750d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:04, skipping insertion in model container [2021-08-26 00:06:04,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:04" (1/1) ... [2021-08-26 00:06:04,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:06:04,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:06:04,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-08-26 00:06:04,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-08-26 00:06:04,923 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-08-26 00:06:04,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:04,929 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:06:04,948 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-08-26 00:06:04,950 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-08-26 00:06:04,951 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-08-26 00:06:04,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:05,001 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:06:05,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05 WrapperNode [2021-08-26 00:06:05,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:05,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:05,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:06:05,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:06:05,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:05,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:06:05,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:06:05,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:06:05,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:06:05,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:06:05,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:06:05,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:06:05,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (1/1) ... [2021-08-26 00:06:05,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:06:05,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 00:06:05,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 00:06:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:06:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:06:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:06:05,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:06:05,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:06:05,357 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-26 00:06:05,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:05 BoogieIcfgContainer [2021-08-26 00:06:05,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:06:05,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:06:05,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:06:05,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:06:05,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:06:04" (1/3) ... [2021-08-26 00:06:05,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4559b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:05, skipping insertion in model container [2021-08-26 00:06:05,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:05" (2/3) ... [2021-08-26 00:06:05,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4559b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:05, skipping insertion in model container [2021-08-26 00:06:05,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:05" (3/3) ... [2021-08-26 00:06:05,377 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-08-26 00:06:05,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:06:05,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 00:06:05,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:06:05,462 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 00:06:05,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 00:06:05,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:05,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:06:05,486 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:05,486 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:06:05,488 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:06:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:05,497 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-26 00:06:05,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:06:05,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041839924] [2021-08-26 00:06:05,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:05,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:06:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:06:05,612 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:06:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:06:05,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:06:05,659 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:06:05,659 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:05,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:05,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:05,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:06:05,668 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:06:05,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:06:05 BoogieIcfgContainer [2021-08-26 00:06:05,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:06:05,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:06:05,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:06:05,683 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:06:05,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:05" (3/4) ... [2021-08-26 00:06:05,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:06:05,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:06:05,687 INFO L168 Benchmark]: Toolchain (without parser) took 870.77 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 37.6 MB in the beginning and 59.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 197.4 kB. Max. memory is 16.1 GB. [2021-08-26 00:06:05,688 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.75 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 37.4 MB in the beginning and 65.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:05,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 81.8 MB. Free memory was 65.2 MB in the beginning and 63.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,690 INFO L168 Benchmark]: Boogie Preprocessor took 17.91 ms. Allocated memory is still 81.8 MB. Free memory was 63.6 MB in the beginning and 62.8 MB in the end (delta: 741.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,693 INFO L168 Benchmark]: RCFGBuilder took 314.61 ms. Allocated memory is still 81.8 MB. Free memory was 62.6 MB in the beginning and 51.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:05,694 INFO L168 Benchmark]: TraceAbstraction took 321.04 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 60.0 MB in the end (delta: -9.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,694 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 59.6 MB in the end (delta: 400.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 40.7 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 186.75 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 37.4 MB in the beginning and 65.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 81.8 MB. Free memory was 65.2 MB in the beginning and 63.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.91 ms. Allocated memory is still 81.8 MB. Free memory was 63.6 MB in the beginning and 62.8 MB in the end (delta: 741.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 314.61 ms. Allocated memory is still 81.8 MB. Free memory was 62.6 MB in the beginning and 51.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 321.04 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 60.0 MB in the end (delta: -9.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.87 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 59.6 MB in the end (delta: 400.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L20] float f1=0x1.000000p-1f; [L21] float f2=0x1.fffffep-126f; [L23] float res = f1 * f2; [L25] COND TRUE !(res == 0x1.0p-126f) [L25] reach_error() - UnprovableResult [Line: 35]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 227.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 14.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.7ms SsaConstructionTime, 28.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 00:06:05,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:06:07,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:06:07,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:06:07,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:06:07,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:06:07,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:06:07,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:06:07,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:06:07,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:06:07,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:06:07,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:06:07,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:06:07,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:06:07,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:06:07,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:06:07,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:06:07,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:06:07,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:06:07,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:06:07,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:06:07,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:06:07,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:06:07,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:06:07,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:06:07,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:06:07,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:06:07,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:06:07,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:06:07,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:06:07,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:06:07,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:06:07,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:06:07,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:06:07,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:06:07,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:06:07,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:06:07,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:06:07,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:06:07,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:06:07,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:06:07,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:06:07,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:06:07,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:06:07,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:06:07,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:06:07,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:06:07,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:06:07,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:06:07,504 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:06:07,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:06:07,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:06:07,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:06:07,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:06:07,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:06:07,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:06:07,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:06:07,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:06:07,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:07,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:06:07,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:06:07,510 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb [2021-08-26 00:06:07,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:06:07,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:06:07,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:06:07,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:06:07,790 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:06:07,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-08-26 00:06:07,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c304d1d90/3e37c8ba70354baba61ddba393c1cdd4/FLAGf150d4d8f [2021-08-26 00:06:08,252 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:06:08,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-08-26 00:06:08,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c304d1d90/3e37c8ba70354baba61ddba393c1cdd4/FLAGf150d4d8f [2021-08-26 00:06:08,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c304d1d90/3e37c8ba70354baba61ddba393c1cdd4 [2021-08-26 00:06:08,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:06:08,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:06:08,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:08,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:06:08,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:06:08,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffc3ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08, skipping insertion in model container [2021-08-26 00:06:08,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:06:08,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:06:08,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-08-26 00:06:08,715 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-08-26 00:06:08,718 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-08-26 00:06:08,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:08,739 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:06:08,748 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-08-26 00:06:08,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-08-26 00:06:08,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-08-26 00:06:08,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:08,760 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:06:08,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08 WrapperNode [2021-08-26 00:06:08,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:08,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:08,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:06:08,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:06:08,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:08,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:06:08,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:06:08,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:06:08,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:06:08,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:06:08,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:06:08,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:06:08,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:08,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:06:08,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 00:06:08,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 00:06:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:06:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:06:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:06:08,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:06:09,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:06:09,818 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-26 00:06:09,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:09 BoogieIcfgContainer [2021-08-26 00:06:09,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:06:09,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:06:09,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:06:09,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:06:09,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:06:08" (1/3) ... [2021-08-26 00:06:09,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53af21c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:09, skipping insertion in model container [2021-08-26 00:06:09,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (2/3) ... [2021-08-26 00:06:09,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53af21c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:09, skipping insertion in model container [2021-08-26 00:06:09,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:09" (3/3) ... [2021-08-26 00:06:09,824 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-08-26 00:06:09,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:06:09,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 00:06:09,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:06:09,939 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 00:06:09,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 00:06:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:06:09,950 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:09,951 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:06:09,951 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:06:09,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:09,955 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-26 00:06:09,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:09,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004118813] [2021-08-26 00:06:09,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:09,963 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:09,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:10,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 00:06:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:10,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-26 00:06:10,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:10,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:10,245 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:10,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004118813] [2021-08-26 00:06:10,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004118813] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:10,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:10,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-26 00:06:10,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609407642] [2021-08-26 00:06:10,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:10,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:10,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:10,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:10,262 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:10,943 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-08-26 00:06:10,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:06:10,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-08-26 00:06:10,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:10,950 INFO L225 Difference]: With dead ends: 27 [2021-08-26 00:06:10,950 INFO L226 Difference]: Without dead ends: 11 [2021-08-26 00:06:10,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-08-26 00:06:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-08-26 00:06:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-08-26 00:06:10,980 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2021-08-26 00:06:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:10,980 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-08-26 00:06:10,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-08-26 00:06:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-26 00:06:10,980 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:10,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-26 00:06:10,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:11,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,182 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:06:11,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:11,183 INFO L82 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2021-08-26 00:06:11,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:11,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401308641] [2021-08-26 00:06:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:11,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:11,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:11,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 00:06:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:11,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-26 00:06:11,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:11,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:11,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:11,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401308641] [2021-08-26 00:06:11,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401308641] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:11,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:11,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-26 00:06:11,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114975420] [2021-08-26 00:06:11,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:11,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:11,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:11,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:11,548 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:11,798 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-08-26 00:06:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:06:11,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-26 00:06:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:11,799 INFO L225 Difference]: With dead ends: 11 [2021-08-26 00:06:11,799 INFO L226 Difference]: Without dead ends: 9 [2021-08-26 00:06:11,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 56.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-26 00:06:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-26 00:06:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-26 00:06:11,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2021-08-26 00:06:11,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:11,801 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-26 00:06:11,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-26 00:06:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 00:06:11,801 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:11,801 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:06:11,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:12,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:12,003 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:06:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:12,004 INFO L82 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2021-08-26 00:06:12,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:12,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047496186] [2021-08-26 00:06:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:12,004 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:12,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:12,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:12,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 00:06:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:12,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:12,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:12,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:12,434 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:12,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047496186] [2021-08-26 00:06:12,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047496186] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:12,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:12,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-26 00:06:12,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585315927] [2021-08-26 00:06:12,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:12,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:12,436 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:13,007 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-08-26 00:06:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:06:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 00:06:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:13,014 INFO L225 Difference]: With dead ends: 9 [2021-08-26 00:06:13,014 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 00:06:13,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:13,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 00:06:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 00:06:13,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:13,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 00:06:13,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-08-26 00:06:13,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:13,015 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 00:06:13,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:13,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 00:06:13,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 00:06:13,017 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:13,017 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:13,017 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:13,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:13,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:13,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 00:06:13,222 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 00:06:13,222 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-08-26 00:06:13,222 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-08-26 00:06:13,222 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-08-26 00:06:13,222 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point L38(lines 1 52) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2021-08-26 00:06:13,223 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-08-26 00:06:13,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2021-08-26 00:06:13,224 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-26 00:06:13,224 INFO L857 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-08-26 00:06:13,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:06:13,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:06:13 BoogieIcfgContainer [2021-08-26 00:06:13,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:06:13,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:06:13,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:06:13,229 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:06:13,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:09" (3/4) ... [2021-08-26 00:06:13,231 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 00:06:13,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-26 00:06:13,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 00:06:13,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:06:13,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:06:13,257 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:06:13,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:06:13,259 INFO L168 Benchmark]: Toolchain (without parser) took 4651.35 ms. Allocated memory was 52.4 MB in the beginning and 77.6 MB in the end (delta: 25.2 MB). Free memory was 30.0 MB in the beginning and 45.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,259 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 52.4 MB. Free memory is still 34.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:13,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.29 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 29.4 MB in the end (delta: 385.2 kB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.05 ms. Allocated memory was 52.4 MB in the beginning and 77.6 MB in the end (delta: 25.2 MB). Free memory was 29.4 MB in the beginning and 61.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,260 INFO L168 Benchmark]: Boogie Preprocessor took 13.23 ms. Allocated memory is still 77.6 MB. Free memory was 61.4 MB in the beginning and 60.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,260 INFO L168 Benchmark]: RCFGBuilder took 989.80 ms. Allocated memory is still 77.6 MB. Free memory was 60.0 MB in the beginning and 47.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,261 INFO L168 Benchmark]: TraceAbstraction took 3407.62 ms. Allocated memory is still 77.6 MB. Free memory was 47.4 MB in the beginning and 48.5 MB in the end (delta: -1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:13,261 INFO L168 Benchmark]: Witness Printer took 28.79 ms. Allocated memory is still 77.6 MB. Free memory was 48.5 MB in the beginning and 45.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:13,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 52.4 MB. Free memory is still 34.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.29 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 29.4 MB in the end (delta: 385.2 kB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.05 ms. Allocated memory was 52.4 MB in the beginning and 77.6 MB in the end (delta: 25.2 MB). Free memory was 29.4 MB in the beginning and 61.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.23 ms. Allocated memory is still 77.6 MB. Free memory was 61.4 MB in the beginning and 60.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 989.80 ms. Allocated memory is still 77.6 MB. Free memory was 60.0 MB in the beginning and 47.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3407.62 ms. Allocated memory is still 77.6 MB. Free memory was 47.4 MB in the beginning and 48.5 MB in the end (delta: -1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 28.79 ms. Allocated memory is still 77.6 MB. Free memory was 48.5 MB in the beginning and 45.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 44]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3317.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 6.5ms, AutomataDifference: 1530.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.9ms, InitialAbstractionConstructionTime: 5.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 50 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1338.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 155.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 29.0ms SsaConstructionTime, 430.2ms SatisfiabilityAnalysisTime, 458.8ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 11 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-26 00:06:13,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...