./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/fabs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fabs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3 --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 5b2d2d481756a61ffcbfbc8fedf0729695fc085a ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fabs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3 --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 5b2d2d481756a61ffcbfbc8fedf0729695fc085a ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:38:04,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:38:04,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:38:04,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:38:04,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:38:04,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:38:04,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:38:04,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:38:04,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:38:04,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:38:04,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:38:04,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:38:04,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:38:04,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:38:04,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:38:04,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:38:04,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:38:04,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:38:04,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:38:04,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:38:04,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:38:04,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:38:04,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:38:04,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:38:04,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:38:04,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:38:04,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:38:04,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:38:04,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:38:04,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:38:04,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:38:04,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:38:04,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:38:04,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:38:04,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:38:04,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:38:04,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:38:04,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:38:04,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:38:04,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:38:04,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:38:04,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:38:04,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:38:04,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:38:04,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:38:04,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:38:04,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:38:04,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:38:04,536 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:38:04,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:38:04,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:38:04,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:38:04,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:38:04,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:38:04,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:38:04,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:38:04,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:38:04,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:38:04,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:38:04,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:38:04,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:38:04,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:38:04,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:38:04,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:38:04,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:38:04,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:38:04,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:38:04,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:38:04,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:38:04,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:38:04,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:38:04,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:38:04,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:38:04,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:38:04,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b2d2d481756a61ffcbfbc8fedf0729695fc085a [2021-10-15 19:38:04,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:38:04,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:38:04,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:38:04,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:38:04,857 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:38:04,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/floats-esbmc-regression/fabs.i [2021-10-15 19:38:04,943 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/b674b8468/a9d47f572e0f4f0b8155c57d2142a52f/FLAG4d65697f1 [2021-10-15 19:38:05,667 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:38:05,668 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/sv-benchmarks/c/floats-esbmc-regression/fabs.i [2021-10-15 19:38:05,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/b674b8468/a9d47f572e0f4f0b8155c57d2142a52f/FLAG4d65697f1 [2021-10-15 19:38:05,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/b674b8468/a9d47f572e0f4f0b8155c57d2142a52f [2021-10-15 19:38:05,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:38:05,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:38:05,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:38:05,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:38:05,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:38:05,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:05" (1/1) ... [2021-10-15 19:38:05,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a61ab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:05, skipping insertion in model container [2021-10-15 19:38:05,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:05" (1/1) ... [2021-10-15 19:38:05,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:38:05,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:38:06,455 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/sv-benchmarks/c/floats-esbmc-regression/fabs.i[36279,36292] [2021-10-15 19:38:06,463 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1694) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1359) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-15 19:38:06,482 INFO L168 Benchmark]: Toolchain (without parser) took 604.91 ms. Allocated memory is still 111.1 MB. Free memory was 89.1 MB in the beginning and 77.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:06,483 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:06,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.37 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 77.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:06,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 602.37 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 77.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:38:08,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:38:08,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:38:08,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:38:08,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:38:08,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:38:08,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:38:08,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:38:08,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:38:08,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:38:08,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:38:08,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:38:08,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:38:08,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:38:08,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:38:08,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:38:08,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:38:08,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:38:08,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:38:08,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:38:08,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:38:08,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:38:08,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:38:08,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:38:08,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:38:08,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:38:08,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:38:08,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:38:08,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:38:08,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:38:08,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:38:08,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:38:08,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:38:08,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:38:08,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:38:08,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:38:08,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:38:08,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:38:08,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:38:08,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:38:08,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:38:08,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:38:08,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:38:08,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:38:08,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:38:08,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:38:08,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:38:08,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:38:08,980 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:38:08,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:38:08,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:38:08,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:38:08,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:38:08,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:38:08,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:38:08,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:38:08,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:38:08,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:38:08,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:38:08,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:38:08,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:38:08,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:38:08,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:38:08,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:38:08,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:38:08,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:38:08,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:38:08,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:38:08,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:38:08,987 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:38:08,987 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:38:08,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:38:08,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:38:08,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:38:08,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:38:08,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:38:08,989 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b2d2d481756a61ffcbfbc8fedf0729695fc085a [2021-10-15 19:38:09,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:38:09,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:38:09,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:38:09,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:38:09,435 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:38:09,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/floats-esbmc-regression/fabs.i [2021-10-15 19:38:09,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/ace9f2ac9/829abfd495fd4ae18a2642827bcc1771/FLAG747276210 [2021-10-15 19:38:10,174 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:38:10,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/sv-benchmarks/c/floats-esbmc-regression/fabs.i [2021-10-15 19:38:10,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/ace9f2ac9/829abfd495fd4ae18a2642827bcc1771/FLAG747276210 [2021-10-15 19:38:10,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/data/ace9f2ac9/829abfd495fd4ae18a2642827bcc1771 [2021-10-15 19:38:10,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:38:10,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:38:10,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:38:10,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:38:10,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:38:10,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:10" (1/1) ... [2021-10-15 19:38:10,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11084485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:10, skipping insertion in model container [2021-10-15 19:38:10,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:38:10" (1/1) ... [2021-10-15 19:38:10,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:38:10,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:38:11,006 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/sv-benchmarks/c/floats-esbmc-regression/fabs.i[36279,36292] [2021-10-15 19:38:11,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:38:11,028 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:38:11,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/sv-benchmarks/c/floats-esbmc-regression/fabs.i[36279,36292] [2021-10-15 19:38:11,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:38:11,227 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:38:11,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11 WrapperNode [2021-10-15 19:38:11,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:38:11,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:38:11,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:38:11,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:38:11,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:38:11,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:38:11,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:38:11,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:38:11,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:38:11,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:38:11,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:38:11,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:38:11,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (1/1) ... [2021-10-15 19:38:11,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:38:11,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:38:11,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:38:11,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:38:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:38:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:38:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:38:11,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:38:11,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:38:11,801 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-15 19:38:11,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:11 BoogieIcfgContainer [2021-10-15 19:38:11,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:38:11,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:38:11,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:38:11,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:38:11,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:38:10" (1/3) ... [2021-10-15 19:38:11,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26324edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:11, skipping insertion in model container [2021-10-15 19:38:11,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:38:11" (2/3) ... [2021-10-15 19:38:11,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26324edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:38:11, skipping insertion in model container [2021-10-15 19:38:11,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:11" (3/3) ... [2021-10-15 19:38:11,828 INFO L111 eAbstractionObserver]: Analyzing ICFG fabs.i [2021-10-15 19:38:11,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:38:11,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-15 19:38:11,914 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:38:11,925 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:38:11,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-15 19:38:11,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 33 transitions, 66 flow [2021-10-15 19:38:11,986 INFO L129 PetriNetUnfolder]: 6/33 cut-off events. [2021-10-15 19:38:11,986 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:11,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:38:11,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 33 transitions, 66 flow [2021-10-15 19:38:12,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 29 transitions, 58 flow [2021-10-15 19:38:12,012 INFO L129 PetriNetUnfolder]: 1/5 cut-off events. [2021-10-15 19:38:12,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:12,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:38:12,013 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-10-15 19:38:12,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-15 19:38:12,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:38:12,021 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-15 19:38:12,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:38:12,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177726883] [2021-10-15 19:38:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:38:12,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:38:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:38:12,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:38:12,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:38:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:38:12,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 19:38:12,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:38:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:12,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-15 19:38:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:38:12,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-15 19:38:12,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177726883] [2021-10-15 19:38:12,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177726883] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-15 19:38:12,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:38:12,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-15 19:38:12,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653328634] [2021-10-15 19:38:12,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:38:12,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-15 19:38:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:38:12,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:38:12,318 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2021-10-15 19:38:12,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 29 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-10-15 19:38:12,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:38:12,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2021-10-15 19:38:12,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:38:12,362 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-10-15 19:38:12,363 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:38:12,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-10-15 19:38:12,364 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2021-10-15 19:38:12,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 12 transitions, 46 flow [2021-10-15 19:38:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:38:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:38:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-10-15 19:38:12,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2021-10-15 19:38:12,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 44 transitions. [2021-10-15 19:38:12,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 44 transitions. [2021-10-15 19:38:12,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:38:12,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 44 transitions. [2021-10-15 19:38:12,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-10-15 19:38:12,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-10-15 19:38:12,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-10-15 19:38:12,389 INFO L186 Difference]: Start difference. First operand has 25 places, 29 transitions, 58 flow. Second operand 3 states and 44 transitions. [2021-10-15 19:38:12,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 12 transitions, 46 flow [2021-10-15 19:38:12,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:38:12,393 INFO L242 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2021-10-15 19:38:12,395 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2021-10-15 19:38:12,396 INFO L334 CegarLoopForPetriNet]: 25 programPoint places, -10 predicate places. [2021-10-15 19:38:12,396 INFO L470 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2021-10-15 19:38:12,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2021-10-15 19:38:12,399 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,401 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:38:12,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:38:12,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:38:12,617 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:38:12,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:38:12 BoogieIcfgContainer [2021-10-15 19:38:12,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:38:12,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:38:12,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:38:12,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:38:12,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:38:11" (3/4) ... [2021-10-15 19:38:12,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:38:12,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-15 19:38:12,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:38:12,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:38:12,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:38:12,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:38:12,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:38:12,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:38:12,685 INFO L168 Benchmark]: Toolchain (without parser) took 2281.00 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 57.6 MB in the beginning and 58.1 MB in the end (delta: -474.1 kB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:12,686 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory is still 56.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:12,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.86 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 57.5 MB in the beginning and 68.8 MB in the end (delta: -11.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:12,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.66 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 66.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:12,695 INFO L168 Benchmark]: Boogie Preprocessor took 52.74 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:12,695 INFO L168 Benchmark]: RCFGBuilder took 428.83 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 54.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:12,696 INFO L168 Benchmark]: TraceAbstraction took 815.75 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 60.8 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:38:12,696 INFO L168 Benchmark]: Witness Printer took 61.20 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 58.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:38:12,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory is still 56.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 824.86 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 57.5 MB in the beginning and 68.8 MB in the end (delta: -11.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.66 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 66.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.74 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 428.83 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 54.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 815.75 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 60.8 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 61.20 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 58.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 706.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 83.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 84.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.3ms SsaConstructionTime, 25.4ms SatisfiabilityAnalysisTime, 174.6ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 3 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 3 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:38:12,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0380bef6-9b55-42bd-a9ba-93a6502ad4f7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...