./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float2.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/float2.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 069e404bf7b01a351383c4004538ba52022db96a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/float2.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 069e404bf7b01a351383c4004538ba52022db96a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:55:32,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:55:32,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:55:32,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:55:32,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:55:32,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:55:32,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:55:32,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:55:32,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:55:32,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:55:32,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:55:32,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:55:32,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:55:32,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:55:32,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:55:32,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:55:32,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:55:32,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:55:32,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:55:32,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:55:32,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:55:32,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:55:32,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:55:32,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:55:32,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:55:32,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:55:32,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:55:32,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:55:32,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:55:32,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:55:32,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:55:32,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:55:32,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:55:32,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:55:32,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:55:32,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:55:32,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:55:32,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:55:32,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:55:32,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:55:32,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:55:32,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:55:32,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:55:32,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:55:32,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:55:32,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:55:32,414 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:55:32,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:55:32,414 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:55:32,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:55:32,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:55:32,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:55:32,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:55:32,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:55:32,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:55:32,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:55:32,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:55:32,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:32,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:55:32,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:55:32,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:55:32,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:55:32,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:55:32,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:55:32,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:55:32,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 069e404bf7b01a351383c4004538ba52022db96a [2021-07-04 22:55:32,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:55:32,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:55:32,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:55:32,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:55:32,709 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:55:32,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-07-04 22:55:32,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad0efbb2/0a3a3f3790be4f50b98991e30c4ad97a/FLAG30e54cae8 [2021-07-04 22:55:33,059 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:55:33,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-07-04 22:55:33,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad0efbb2/0a3a3f3790be4f50b98991e30c4ad97a/FLAG30e54cae8 [2021-07-04 22:55:33,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad0efbb2/0a3a3f3790be4f50b98991e30c4ad97a [2021-07-04 22:55:33,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:55:33,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:55:33,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:33,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:55:33,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:55:33,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4762bb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33, skipping insertion in model container [2021-07-04 22:55:33,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:55:33,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:55:33,616 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/float2.c[366,379] [2021-07-04 22:55:33,620 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/float2.c[420,433] [2021-07-04 22:55:33,621 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/float2.c[493,506] [2021-07-04 22:55:33,623 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/float2.c[557,570] [2021-07-04 22:55:33,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:33,631 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:55:33,641 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/float2.c[366,379] [2021-07-04 22:55:33,642 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/float2.c[420,433] [2021-07-04 22:55:33,643 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/float2.c[493,506] [2021-07-04 22:55:33,644 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/float2.c[557,570] [2021-07-04 22:55:33,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:33,689 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:55:33,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33 WrapperNode [2021-07-04 22:55:33,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:33,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:33,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:55:33,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:55:33,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:33,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:55:33,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:55:33,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:55:33,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:55:33,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:55:33,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:55:33,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:55:33,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (1/1) ... [2021-07-04 22:55:33,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:33,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:55:33,774 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 22:55:33,797 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 22:55:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:55:33,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:55:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 22:55:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:55:34,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:55:34,000 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-04 22:55:34,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:34 BoogieIcfgContainer [2021-07-04 22:55:34,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:55:34,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:55:34,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:55:34,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:55:34,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:55:33" (1/3) ... [2021-07-04 22:55:34,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e9aca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:34, skipping insertion in model container [2021-07-04 22:55:34,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:33" (2/3) ... [2021-07-04 22:55:34,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e9aca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:34, skipping insertion in model container [2021-07-04 22:55:34,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:34" (3/3) ... [2021-07-04 22:55:34,006 INFO L111 eAbstractionObserver]: Analyzing ICFG float2.c [2021-07-04 22:55:34,010 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:55:34,011 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-07-04 22:55:34,037 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:34,041 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 22:55:34,041 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:34,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 22:55:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:55:34,052 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:34,053 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:55:34,053 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:34,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:34,057 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-07-04 22:55:34,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:55:34,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398894520] [2021-07-04 22:55:34,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:34,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:55:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:55:34,136 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:55:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:55:34,151 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:55:34,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 22:55:34,168 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:55:34,171 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 22:55:34,171 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:34,174 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/4) [2021-07-04 22:55:34,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:55:34 BoogieIcfgContainer [2021-07-04 22:55:34,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:55:34,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:55:34,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:55:34,192 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:55:34,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:34" (3/4) ... [2021-07-04 22:55:34,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 22:55:34,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:55:34,197 INFO L168 Benchmark]: Toolchain (without parser) took 704.16 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 46.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:34,198 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 44.0 MB. Free memory was 25.6 MB in the beginning and 25.6 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:34,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.11 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 38.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:34,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.48 ms. Allocated memory is still 54.5 MB. Free memory was 38.7 MB in the beginning and 37.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:34,200 INFO L168 Benchmark]: Boogie Preprocessor took 19.41 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 36.5 MB in the end (delta: 880.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:34,201 INFO L168 Benchmark]: RCFGBuilder took 263.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 34.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:34,205 INFO L168 Benchmark]: TraceAbstraction took 185.76 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.0 MB in the beginning and 46.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 353.8 kB. Max. memory is 16.1 GB. [2021-07-04 22:55:34,205 INFO L168 Benchmark]: Witness Printer took 3.34 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 46.0 MB in the end (delta: 398.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:34,210 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 44.0 MB. Free memory was 25.6 MB in the beginning and 25.6 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 203.11 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 38.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 19.48 ms. Allocated memory is still 54.5 MB. Free memory was 38.7 MB in the beginning and 37.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.41 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 36.5 MB in the end (delta: 880.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 263.10 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 34.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 185.76 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.0 MB in the beginning and 46.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 353.8 kB. Max. memory is 16.1 GB. * Witness Printer took 3.34 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 46.0 MB in the end (delta: 398.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12. Possible FailurePath: [L7] float a; [L8] double b; [L11] a=1.25L [L12] COND TRUE !(a==1.25) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 137.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.8ms, 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=20occurred 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: 5.5ms SsaConstructionTime, 24.2ms 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 22:55:34,239 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:55:36,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:55:36,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:55:36,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:55:36,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:55:36,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:55:36,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:55:36,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:55:36,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:55:36,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:55:36,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:55:36,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:55:36,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:55:36,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:55:36,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:55:36,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:55:36,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:55:36,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:55:36,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:55:36,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:55:36,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:55:36,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:55:36,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:55:36,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:55:36,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:55:36,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:55:36,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:55:36,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:55:36,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:55:36,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:55:36,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:55:36,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:55:36,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:55:36,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:55:36,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:55:36,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:55:36,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:55:36,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:55:36,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:55:36,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:55:36,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:55:36,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:55:36,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:55:36,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:55:36,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:55:36,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:55:36,919 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:55:36,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:55:36,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:55:36,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:55:36,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:55:36,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:55:36,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:55:36,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:55:36,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:55:36,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:36,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:55:36,930 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:55:36,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:55:36,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:55:36,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:55:36,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 069e404bf7b01a351383c4004538ba52022db96a [2021-07-04 22:55:37,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:55:37,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:55:37,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:55:37,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:55:37,414 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:55:37,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-07-04 22:55:37,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1b9cc42/d3e81d0a7385485ca7fbbba95f932437/FLAGede7bdb0f [2021-07-04 22:55:37,829 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:55:37,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float2.c [2021-07-04 22:55:37,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1b9cc42/d3e81d0a7385485ca7fbbba95f932437/FLAGede7bdb0f [2021-07-04 22:55:37,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1b9cc42/d3e81d0a7385485ca7fbbba95f932437 [2021-07-04 22:55:37,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:55:37,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:55:37,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:37,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:55:37,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:55:37,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:37" (1/1) ... [2021-07-04 22:55:37,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed9e5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:37, skipping insertion in model container [2021-07-04 22:55:37,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:37" (1/1) ... [2021-07-04 22:55:37,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:55:37,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:55:37,978 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/float2.c[366,379] [2021-07-04 22:55:37,981 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/float2.c[420,433] [2021-07-04 22:55:37,982 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/float2.c[493,506] [2021-07-04 22:55:37,985 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/float2.c[557,570] [2021-07-04 22:55:37,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:37,994 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:55:38,004 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/float2.c[366,379] [2021-07-04 22:55:38,005 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/float2.c[420,433] [2021-07-04 22:55:38,005 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/float2.c[493,506] [2021-07-04 22:55:38,007 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/float2.c[557,570] [2021-07-04 22:55:38,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:38,025 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:55:38,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38 WrapperNode [2021-07-04 22:55:38,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:38,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:38,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:55:38,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:55:38,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:38,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:55:38,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:55:38,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:55:38,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:55:38,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:55:38,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:55:38,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:55:38,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (1/1) ... [2021-07-04 22:55:38,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:38,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:55:38,130 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 22:55:38,149 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 22:55:38,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:55:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:55:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:55:38,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:55:38,411 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:55:38,411 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-04 22:55:38,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:38 BoogieIcfgContainer [2021-07-04 22:55:38,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:55:38,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:55:38,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:55:38,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:55:38,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:55:37" (1/3) ... [2021-07-04 22:55:38,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb5abbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:38, skipping insertion in model container [2021-07-04 22:55:38,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:38" (2/3) ... [2021-07-04 22:55:38,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb5abbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:38, skipping insertion in model container [2021-07-04 22:55:38,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:38" (3/3) ... [2021-07-04 22:55:38,416 INFO L111 eAbstractionObserver]: Analyzing ICFG float2.c [2021-07-04 22:55:38,420 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:55:38,421 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-07-04 22:55:38,453 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:38,458 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 22:55:38,458 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 22:55:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:55:38,470 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:38,470 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:55:38,470 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-07-04 22:55:38,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:55:38,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061437984] [2021-07-04 22:55:38,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:38,484 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:55:38,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:55:38,509 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 22:55:38,537 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 22:55:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:55:38,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-04 22:55:38,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:55:38,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-04 22:55:38,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:38,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:38,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:55:38,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,669 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 22:55:38,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:55:38,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:38,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:38,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:38,878 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 22:55:38,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:55:38,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061437984] [2021-07-04 22:55:38,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061437984] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:55:38,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:55:38,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-07-04 22:55:38,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353393629] [2021-07-04 22:55:38,885 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-04 22:55:38,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:55:38,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-04 22:55:38,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:38,896 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 22:55:38,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:38,952 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-07-04 22:55:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-04 22:55:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 22:55:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:38,957 INFO L225 Difference]: With dead ends: 35 [2021-07-04 22:55:38,957 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:38,959 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 203.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:38,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:38,976 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 22:55:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:38,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-04 22:55:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:38,977 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:38,978 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 22:55:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:38,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:38,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-07-04 22:55:38,983 INFO L762 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 24) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-07-04 22:55:38,984 INFO L762 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-07-04 22:55:38,995 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 22:55:39,192 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 22:55:39,192 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:39,195 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2021-07-04 22:55:39,197 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:39,198 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 22:55:39,198 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 22:55:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:55:39,199 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:39,199 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:55:39,199 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:39,200 INFO L82 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2021-07-04 22:55:39,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:55:39,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349176436] [2021-07-04 22:55:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:39,200 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:55:39,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:55:39,202 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 22:55:39,203 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 22:55:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:55:39,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-04 22:55:39,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:55:39,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:39,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:39,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-04 22:55:39,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:55:39,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,250 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 22:55:39,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:55:39,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,267 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 22:55:39,267 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:55:39,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349176436] [2021-07-04 22:55:39,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349176436] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:55:39,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:55:39,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-07-04 22:55:39,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56638834] [2021-07-04 22:55:39,267 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-04 22:55:39,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:55:39,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-04 22:55:39,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:39,268 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 22:55:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:39,422 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-07-04 22:55:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-04 22:55:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 22:55:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:39,423 INFO L225 Difference]: With dead ends: 33 [2021-07-04 22:55:39,423 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:39,423 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:39,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:39,424 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 22:55:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:39,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-04 22:55:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:39,424 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:39,424 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 22:55:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:39,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:39,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 24) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,425 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,426 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,426 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,426 INFO L762 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,426 INFO L762 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-07-04 22:55:39,626 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 22:55:39,626 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:39,627 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/4) [2021-07-04 22:55:39,628 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:39,628 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 22:55:39,628 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 22:55:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-04 22:55:39,629 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:39,629 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 22:55:39,629 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:39,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:39,630 INFO L82 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2021-07-04 22:55:39,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:55:39,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139412019] [2021-07-04 22:55:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:39,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:55:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:55:39,634 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 22:55:39,664 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 22:55:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:55:39,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-04 22:55:39,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:55:39,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:39,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:39,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:39,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:39,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:55:39,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:39,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:55:39,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:39,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,690 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 22:55:39,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:55:39,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:39,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:39,708 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 22:55:39,708 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:55:39,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139412019] [2021-07-04 22:55:39,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139412019] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:55:39,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:55:39,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-07-04 22:55:39,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057375125] [2021-07-04 22:55:39,709 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-04 22:55:39,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:55:39,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-04 22:55:39,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:39,709 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:39,831 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-07-04 22:55:39,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-04 22:55:39,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-07-04 22:55:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:39,832 INFO L225 Difference]: With dead ends: 33 [2021-07-04 22:55:39,832 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:39,832 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:39,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:39,832 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 22:55:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:39,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-07-04 22:55:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:39,832 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:39,832 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:39,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:39,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 24) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,833 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:39,834 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,834 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-07-04 22:55:39,834 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,834 INFO L762 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,834 INFO L762 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-07-04 22:55:39,848 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 22:55:40,034 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 22:55:40,034 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:40,035 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION was SAFE (3/4) [2021-07-04 22:55:40,036 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:40,037 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 22:55:40,037 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 22:55:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-04 22:55:40,038 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:40,038 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 22:55:40,038 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:40,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:40,038 INFO L82 PathProgramCache]: Analyzing trace with hash -904234870, now seen corresponding path program 1 times [2021-07-04 22:55:40,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:55:40,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883627016] [2021-07-04 22:55:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:40,039 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:55:40,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:55:40,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-04 22:55:40,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-07-04 22:55:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:55:40,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-04 22:55:40,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:55:40,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:40,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:40,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:40,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:55:40,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:55:40,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:40,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:55:40,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:40,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,094 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 22:55:40,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:55:40,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:40,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:40,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:40,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:40,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:40,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:40,114 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 22:55:40,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:55:40,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883627016] [2021-07-04 22:55:40,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883627016] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:55:40,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:55:40,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-07-04 22:55:40,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027967051] [2021-07-04 22:55:40,115 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-04 22:55:40,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:55:40,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-04 22:55:40,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:40,116 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 19 states have internal predecessors, (23), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:40,200 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-07-04 22:55:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-04 22:55:40,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-04 22:55:40,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:40,200 INFO L225 Difference]: With dead ends: 33 [2021-07-04 22:55:40,200 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:40,201 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-04 22:55:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:40,201 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 22:55:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:40,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-07-04 22:55:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:40,201 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:40,201 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:40,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:40,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L5(lines 5 24) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-07-04 22:55:40,202 INFO L762 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-07-04 22:55:40,203 INFO L762 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-07-04 22:55:40,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-07-04 22:55:40,403 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:55:40,403 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:40,403 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION was SAFE (4/4) [2021-07-04 22:55:40,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:55:40 BoogieIcfgContainer [2021-07-04 22:55:40,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:55:40,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:55:40,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:55:40,407 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:55:40,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:38" (3/4) ... [2021-07-04 22:55:40,409 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 22:55:40,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-04 22:55:40,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 22:55:40,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-04 22:55:40,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:55:40,431 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:55:40,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:55:40,432 INFO L168 Benchmark]: Toolchain (without parser) took 2583.88 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 40.7 MB in the beginning and 42.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.4 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.71 ms. Allocated memory is still 56.6 MB. Free memory was 40.4 MB in the beginning and 40.1 MB in the end (delta: 329.8 kB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 38.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 37.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: RCFGBuilder took 324.19 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 36.8 MB in the end (delta: 621.8 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: TraceAbstraction took 1993.47 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.3 MB in the beginning and 44.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,432 INFO L168 Benchmark]: Witness Printer took 24.36 ms. Allocated memory is still 69.2 MB. Free memory was 44.5 MB in the beginning and 42.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:40,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.4 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 175.71 ms. Allocated memory is still 56.6 MB. Free memory was 40.4 MB in the beginning and 40.1 MB in the end (delta: 329.8 kB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.10 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 38.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 37.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 324.19 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 36.8 MB in the end (delta: 621.8 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1993.47 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.3 MB in the beginning and 44.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Witness Printer took 24.36 ms. Allocated memory is still 69.2 MB. Free memory was 44.5 MB in the beginning and 42.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 23]: 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 743.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.6ms, AutomataDifference: 73.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.2ms, InitialAbstractionConstructionTime: 7.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 203.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.1ms 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: 12.4ms SsaConstructionTime, 25.9ms SatisfiabilityAnalysisTime, 273.6ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 2 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 429.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 155.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.1ms, InitialAbstractionConstructionTime: 0.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 11 SDslu, 1 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 142.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 4.0ms SsaConstructionTime, 12.4ms SatisfiabilityAnalysisTime, 37.5ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 2 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 2 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, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 406.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 123.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 3.8ms SsaConstructionTime, 12.8ms SatisfiabilityAnalysisTime, 42.9ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 2 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 2 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.startErr3ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 20 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 366.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 85.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.1ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 3.9ms SsaConstructionTime, 14.9ms SatisfiabilityAnalysisTime, 46.5ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 2 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 2 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-07-04 22:55:40,458 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...