./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 8d31f386 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-wip.dd.multireach-323-8d31f38 [2021-07-04 22:54:11,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:54:11,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:54:11,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:54:11,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:54:11,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:54:11,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:54:11,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:54:11,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:54:11,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:54:11,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:54:11,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:54:11,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:54:11,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:54:11,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:54:11,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:54:11,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:54:11,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:54:11,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:54:11,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:54:11,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:54:11,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:54:11,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:54:11,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:54:11,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:54:11,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:54:11,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:54:11,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:54:11,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:54:11,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:54:11,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:54:11,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:54:11,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:54:11,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:54:11,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:54:11,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:54:11,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:54:11,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:54:11,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:54:11,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:54:11,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:54:11,636 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:54:11,649 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:54:11,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:54:11,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:54:11,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:54:11,651 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:54:11,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:54:11,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:54:11,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:54:11,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:54:11,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:54:11,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:54:11,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:54:11,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:54:11,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:54:11,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:11,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:54:11,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:54:11,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb [2021-07-04 22:54:11,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:54:11,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:54:11,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:54:11,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:54:11,865 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:54:11,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-07-04 22:54:11,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49ff6593/a2f8b8c66d764a6eab177b7305305f5b/FLAG007beea2a [2021-07-04 22:54:12,250 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:54:12,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-07-04 22:54:12,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49ff6593/a2f8b8c66d764a6eab177b7305305f5b/FLAG007beea2a [2021-07-04 22:54:12,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49ff6593/a2f8b8c66d764a6eab177b7305305f5b [2021-07-04 22:54:12,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:54:12,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:54:12,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:12,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:54:12,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:54:12,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f59f9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12, skipping insertion in model container [2021-07-04 22:54:12,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:54:12,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:54:12,860 WARN L224 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] [2021-07-04 22:54:12,872 WARN L224 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] [2021-07-04 22:54:12,877 WARN L224 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] [2021-07-04 22:54:12,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:12,885 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:54:12,896 WARN L224 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] [2021-07-04 22:54:12,898 WARN L224 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] [2021-07-04 22:54:12,901 WARN L224 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] [2021-07-04 22:54:12,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:12,945 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:54:12,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12 WrapperNode [2021-07-04 22:54:12,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:12,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:12,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:54:12,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:54:12,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:12,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:54:12,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:54:12,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:54:12,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:54:12,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:54:12,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:54:12,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:54:12,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (1/1) ... [2021-07-04 22:54:12,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:12,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:54:13,003 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) [2021-07-04 22:54:13,046 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 [2021-07-04 22:54:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 22:54:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:54:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:54:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:54:13,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:54:13,243 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-04 22:54:13,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:13 BoogieIcfgContainer [2021-07-04 22:54:13,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:54:13,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:54:13,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:54:13,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:54:13,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:54:12" (1/3) ... [2021-07-04 22:54:13,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff8485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:13, skipping insertion in model container [2021-07-04 22:54:13,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:12" (2/3) ... [2021-07-04 22:54:13,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff8485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:13, skipping insertion in model container [2021-07-04 22:54:13,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:13" (3/3) ... [2021-07-04 22:54:13,257 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-07-04 22:54:13,263 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:54:13,276 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-07-04 22:54:13,326 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:54:13,333 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:54:13,334 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:54:13,344 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) [2021-07-04 22:54:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:54:13,346 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:54:13,347 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:54:13,347 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:54:13,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:54:13,354 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-07-04 22:54:13,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:54:13,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232823259] [2021-07-04 22:54:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:54:13,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:54:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:54:13,419 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:54:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:54:13,428 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:54:13,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 22:54:13,440 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:54:13,442 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 22:54:13,442 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:54:13,444 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2021-07-04 22:54:13,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:54:13 BoogieIcfgContainer [2021-07-04 22:54:13,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:54:13,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:54:13,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:54:13,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:54:13,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:13" (3/4) ... [2021-07-04 22:54:13,458 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 22:54:13,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:54:13,459 INFO L168 Benchmark]: Toolchain (without parser) took 747.89 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.4 MB in the beginning and 27.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:13,460 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 28.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:13,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.81 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 40.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:13,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 56.6 MB. Free memory was 40.5 MB in the beginning and 39.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:13,461 INFO L168 Benchmark]: Boogie Preprocessor took 15.86 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 38.2 MB in the end (delta: 970.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:13,462 INFO L168 Benchmark]: RCFGBuilder took 261.91 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 26.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:13,462 INFO L168 Benchmark]: TraceAbstraction took 205.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 27.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:13,462 INFO L168 Benchmark]: Witness Printer took 2.58 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 27.1 MB in the end (delta: 219.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:13,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 28.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.81 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 40.7 MB in the end (delta: -18.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 56.6 MB. Free memory was 40.5 MB in the beginning and 39.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.86 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 38.2 MB in the end (delta: 970.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 261.91 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 26.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 205.62 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 27.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.58 ms. Allocated memory is still 56.6 MB. Free memory was 27.3 MB in the beginning and 27.1 MB in the end (delta: 219.8 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() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 119.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.0ms, 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: 2.7ms SsaConstructionTime, 20.1ms 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 [2021-07-04 22:54:13,488 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-wip.dd.multireach-323-8d31f38 [2021-07-04 22:54:14,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:54:14,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:54:14,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:54:14,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:54:14,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:54:14,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:54:14,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:54:14,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:54:15,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:54:15,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:54:15,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:54:15,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:54:15,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:54:15,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:54:15,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:54:15,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:54:15,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:54:15,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:54:15,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:54:15,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:54:15,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:54:15,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:54:15,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:54:15,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:54:15,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:54:15,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:54:15,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:54:15,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:54:15,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:54:15,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:54:15,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:54:15,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:54:15,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:54:15,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:54:15,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:54:15,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:54:15,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:54:15,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:54:15,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:54:15,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:54:15,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:54:15,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:54:15,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:54:15,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:54:15,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:54:15,054 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:54:15,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:54:15,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:54:15,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:54:15,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:54:15,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:54:15,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:54:15,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:54:15,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:54:15,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:54:15,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:54:15,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:54:15,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:15,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:54:15,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:54:15,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5ffd33a79ac0f158a6e6ff96de12eae93b56cb [2021-07-04 22:54:15,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:54:15,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:54:15,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:54:15,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:54:15,323 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:54:15,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-07-04 22:54:15,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d371340/5424b6e45a0d4fc1b95d073ee2402e22/FLAG30f619149 [2021-07-04 22:54:15,753 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:54:15,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-07-04 22:54:15,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d371340/5424b6e45a0d4fc1b95d073ee2402e22/FLAG30f619149 [2021-07-04 22:54:16,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d371340/5424b6e45a0d4fc1b95d073ee2402e22 [2021-07-04 22:54:16,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:54:16,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:54:16,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:16,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:54:16,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:54:16,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79aa33bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16, skipping insertion in model container [2021-07-04 22:54:16,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:54:16,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:54:16,273 WARN L224 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] [2021-07-04 22:54:16,282 WARN L224 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] [2021-07-04 22:54:16,288 WARN L224 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] [2021-07-04 22:54:16,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:16,311 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:54:16,352 WARN L224 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] [2021-07-04 22:54:16,360 WARN L224 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] [2021-07-04 22:54:16,362 WARN L224 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] [2021-07-04 22:54:16,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:16,373 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:54:16,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16 WrapperNode [2021-07-04 22:54:16,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:16,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:16,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:54:16,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:54:16,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:16,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:54:16,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:54:16,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:54:16,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:54:16,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:54:16,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:54:16,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:54:16,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (1/1) ... [2021-07-04 22:54:16,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:16,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:54:16,456 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) [2021-07-04 22:54:16,463 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 [2021-07-04 22:54:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:54:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:54:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:54:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:54:17,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:54:17,190 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-04 22:54:17,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:17 BoogieIcfgContainer [2021-07-04 22:54:17,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:54:17,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:54:17,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:54:17,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:54:17,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:54:16" (1/3) ... [2021-07-04 22:54:17,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:17, skipping insertion in model container [2021-07-04 22:54:17,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:16" (2/3) ... [2021-07-04 22:54:17,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:17, skipping insertion in model container [2021-07-04 22:54:17,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:17" (3/3) ... [2021-07-04 22:54:17,196 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-07-04 22:54:17,200 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:54:17,201 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-07-04 22:54:17,239 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:54:17,244 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:54:17,244 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:54:17,252 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) [2021-07-04 22:54:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:54:17,255 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:54:17,255 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:54:17,255 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:54:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:54:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-07-04 22:54:17,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:54:17,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77349664] [2021-07-04 22:54:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:54:17,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:54:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:54:17,269 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) [2021-07-04 22:54:17,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-04 22:54:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:54:17,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-04 22:54:17,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:54:17,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:17,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:17,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:17,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:17,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-04 22:54:17,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:17,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:17,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:17,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-04 22:54:17,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:17,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:17,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:17,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:54:17,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:17,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:17,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:17,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:17,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:17,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:17,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:17,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:17,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:17,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-04 22:54:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-04 22:54:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-04 22:54:17,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-04 22:54:17,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:17,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:17,511 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:54:17,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77349664] [2021-07-04 22:54:17,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77349664] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:54:17,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:54:17,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-07-04 22:54:17,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098840194] [2021-07-04 22:54:17,516 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-04 22:54:17,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:54:17,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-04 22:54:17,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:17,526 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) [2021-07-04 22:54:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:54:17,820 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-07-04 22:54:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:54:17,821 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 [2021-07-04 22:54:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:54:17,825 INFO L225 Difference]: With dead ends: 27 [2021-07-04 22:54:17,825 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:54:17,826 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:54:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:54:17,840 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) [2021-07-04 22:54:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:54:17,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-04 22:54:17,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:54:17,841 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:54:17,841 INFO L443 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) [2021-07-04 22:54:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:54:17,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:54:17,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:54:17,847 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:54:17,847 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-04 22:54:17,847 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-07-04 22:54:17,847 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-04 22:54:17,847 INFO L762 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point L38(lines 1 52) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:54:17,848 INFO L762 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2021-07-04 22:54:17,849 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-07-04 22:54:17,849 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2021-07-04 22:54:17,849 INFO L762 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-07-04 22:54:17,849 INFO L762 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-07-04 22:54:17,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-07-04 22:54:18,057 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:54:18,058 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:54:18,061 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/3) [2021-07-04 22:54:18,069 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:54:18,077 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:54:18,077 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:54:18,093 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) [2021-07-04 22:54:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:54:18,093 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:54:18,093 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:54:18,094 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:54:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:54:18,094 INFO L82 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2021-07-04 22:54:18,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:54:18,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446662133] [2021-07-04 22:54:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:54:18,097 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:54:18,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:54:18,098 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) [2021-07-04 22:54:18,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-07-04 22:54:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:54:18,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-04 22:54:18,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:54:18,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:18,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-04 22:54:18,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:18,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-04 22:54:18,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:18,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:18,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:54:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:18,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:54:18,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:18,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:18,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:18,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:18,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:18,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:18,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:18,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:18,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:18,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-04 22:54:18,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-04 22:54:18,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:18,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-04 22:54:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-04 22:54:18,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:18,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:54:18,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446662133] [2021-07-04 22:54:18,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446662133] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:54:18,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:54:18,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-07-04 22:54:18,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174083770] [2021-07-04 22:54:18,419 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-04 22:54:18,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:54:18,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-04 22:54:18,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:18,420 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 1.8333333333333333) 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) [2021-07-04 22:54:18,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:54:18,670 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-07-04 22:54:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:54:18,671 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 [2021-07-04 22:54:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:54:18,671 INFO L225 Difference]: With dead ends: 25 [2021-07-04 22:54:18,671 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:54:18,671 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:54:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:54:18,672 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) [2021-07-04 22:54:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:54:18,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-04 22:54:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:54:18,672 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:54:18,672 INFO L443 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) [2021-07-04 22:54:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:54:18,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:54:18,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:54:18,672 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:54:18,672 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L38(lines 1 52) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-07-04 22:54:18,673 INFO L762 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-07-04 22:54:18,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-07-04 22:54:18,874 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:54:18,874 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:54:18,874 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/3) [2021-07-04 22:54:18,876 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:54:18,876 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:54:18,877 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:54:18,877 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) [2021-07-04 22:54:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-04 22:54:18,877 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:54:18,878 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 22:54:18,878 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:54:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:54:18,878 INFO L82 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2021-07-04 22:54:18,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:54:18,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663160974] [2021-07-04 22:54:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:54:18,878 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:54:18,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:54:18,879 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) [2021-07-04 22:54:18,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-07-04 22:54:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:54:19,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-04 22:54:19,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:54:19,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:19,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:19,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:54:19,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:54:19,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:54:19,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-04 22:54:19,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:19,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:19,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:19,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:54:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:19,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:19,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:19,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:19,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:19,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:19,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:19,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:54:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-04 22:54:19,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-04 22:54:19,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-04 22:54:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-04 22:54:19,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:19,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:19,193 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:54:19,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663160974] [2021-07-04 22:54:19,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663160974] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:54:19,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:54:19,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-07-04 22:54:19,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828131504] [2021-07-04 22:54:19,194 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-04 22:54:19,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:54:19,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-04 22:54:19,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:19,195 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 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) [2021-07-04 22:54:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:54:19,604 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-07-04 22:54:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:54:19,604 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 [2021-07-04 22:54:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:54:19,605 INFO L225 Difference]: With dead ends: 25 [2021-07-04 22:54:19,605 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:54:19,605 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 53.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:54:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:54:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:54:19,605 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) [2021-07-04 22:54:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:54:19,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-07-04 22:54:19,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:54:19,605 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:54:19,605 INFO L443 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) [2021-07-04 22:54:19,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:54:19,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:54:19,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L38(lines 1 52) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2021-07-04 22:54:19,606 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-07-04 22:54:19,607 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2021-07-04 22:54:19,607 INFO L762 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-07-04 22:54:19,607 INFO L762 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-07-04 22:54:19,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-07-04 22:54:19,807 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:54:19,807 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:54:19,808 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION was SAFE (3/3) [2021-07-04 22:54:19,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:54:19 BoogieIcfgContainer [2021-07-04 22:54:19,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:54:19,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:54:19,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:54:19,811 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:54:19,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:17" (3/4) ... [2021-07-04 22:54:19,813 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 22:54:19,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-04 22:54:19,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 22:54:19,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:54:19,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:54:19,836 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:54:19,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:54:19,837 INFO L168 Benchmark]: Toolchain (without parser) took 3661.15 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.5 MB in the beginning and 38.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,838 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 69.2 MB. Free memory was 49.7 MB in the beginning and 49.7 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:19,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.03 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 50.5 MB in the end (delta: -214.8 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.79 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 48.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:19,838 INFO L168 Benchmark]: Boogie Preprocessor took 37.07 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 47.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,838 INFO L168 Benchmark]: RCFGBuilder took 754.56 ms. Allocated memory is still 69.2 MB. Free memory was 47.8 MB in the beginning and 35.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,839 INFO L168 Benchmark]: TraceAbstraction took 2618.36 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 40.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,839 INFO L168 Benchmark]: Witness Printer took 25.71 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 38.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:19,840 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 69.2 MB. Free memory was 49.7 MB in the beginning and 49.7 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.03 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 50.5 MB in the end (delta: -214.8 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.79 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 48.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.07 ms. Allocated memory is still 69.2 MB. Free memory was 48.9 MB in the beginning and 47.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 754.56 ms. Allocated memory is still 69.2 MB. Free memory was 47.8 MB in the beginning and 35.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2618.36 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 40.7 MB in the end (delta: -5.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Witness Printer took 25.71 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 38.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 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 - 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 - 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 for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 828.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.1ms, AutomataDifference: 309.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.3ms, InitialAbstractionConstructionTime: 5.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 34 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 233.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 60.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.7ms AutomataMinimizationTime, 1 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: 6.6ms SsaConstructionTime, 41.6ms SatisfiabilityAnalysisTime, 120.9ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 4 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 804.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 252.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.1ms, InitialAbstractionConstructionTime: 15.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 20 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 198.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.3ms AutomataMinimizationTime, 1 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: 4.6ms SsaConstructionTime, 152.1ms SatisfiabilityAnalysisTime, 138.5ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 4 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 931.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 410.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.1ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 353.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 53.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.2ms AutomataMinimizationTime, 1 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: 15.0ms SsaConstructionTime, 171.6ms SatisfiabilityAnalysisTime, 109.7ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 3 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-07-04 22:54:19,878 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...