./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ffa353364df069da4c745dd5fb0697227f61d1b ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:35,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:35,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:35,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:35,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:35,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:35,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:35,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:35,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:35,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:35,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:35,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:35,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:35,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:35,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:35,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:35,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:35,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:35,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:35,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:35,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:35,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:35,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:35,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:35,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:35,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:35,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:35,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:35,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:35,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:35,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:35,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:35,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:35,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:35,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:35,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:35,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:35,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:35,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:35,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:35,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:35,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:35,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:35,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:35,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:35,803 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:35,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:35,804 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:35,804 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:35,804 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:35,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:35,805 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:35,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:35,806 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:35,806 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:35,807 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:35,807 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:35,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:35,808 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:35,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:35,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:35,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:35,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:35,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:35,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:35,809 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:35,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:35,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:35,810 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:35,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:35,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:35,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:35,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:35,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:35,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:35,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:35,814 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:35,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:35,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:35,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:35,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:35,815 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ffa353364df069da4c745dd5fb0697227f61d1b [2021-10-11 02:24:36,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:36,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:36,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:36,122 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:36,123 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:36,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c [2021-10-11 02:24:36,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/data/21b2a60ab/720f5b9c771f41ab95d0f715d1ed6691/FLAG4b78f6760 [2021-10-11 02:24:36,651 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:36,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c [2021-10-11 02:24:36,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/data/21b2a60ab/720f5b9c771f41ab95d0f715d1ed6691/FLAG4b78f6760 [2021-10-11 02:24:37,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/data/21b2a60ab/720f5b9c771f41ab95d0f715d1ed6691 [2021-10-11 02:24:37,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:37,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:37,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:37,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:37,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:37,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48046db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37, skipping insertion in model container [2021-10-11 02:24:37,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:37,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:37,223 WARN L226 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_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c[546,559] [2021-10-11 02:24:37,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:37,247 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:37,258 WARN L226 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_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_unwindbound1.c[546,559] [2021-10-11 02:24:37,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:37,274 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:37,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37 WrapperNode [2021-10-11 02:24:37,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:37,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:37,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:37,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:37,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:37,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:37,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:37,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:37,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... [2021-10-11 02:24:37,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:37,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:37,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:37,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:37,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:37,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:37,753 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-11 02:24:37,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:37 BoogieIcfgContainer [2021-10-11 02:24:37,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:37,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:37,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:37,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:37,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:37" (1/3) ... [2021-10-11 02:24:37,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d8de1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:37, skipping insertion in model container [2021-10-11 02:24:37,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:37" (2/3) ... [2021-10-11 02:24:37,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d8de1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:37, skipping insertion in model container [2021-10-11 02:24:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:37" (3/3) ... [2021-10-11 02:24:37,763 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_unwindbound1.c [2021-10-11 02:24:37,802 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:37,805 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:24:37,832 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:24:37,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:37,857 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:37,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:37,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:37,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:37,857 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:37,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:37,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:24:37,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:24:37,885 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:37,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:24:37,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:37,893 INFO L82 PathProgramCache]: Analyzing trace with hash 92080106, now seen corresponding path program 1 times [2021-10-11 02:24:37,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:37,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310662727] [2021-10-11 02:24:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:38,008 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:24:38,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847415072] [2021-10-11 02:24:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:38,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:24:38,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:38,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:38,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310662727] [2021-10-11 02:24:38,272 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:38,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847415072] [2021-10-11 02:24:38,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:38,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:24:38,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554348709] [2021-10-11 02:24:38,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:38,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:38,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:38,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:38,316 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2021-10-11 02:24:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:40,502 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-10-11 02:24:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:40,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:24:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:40,511 INFO L225 Difference]: With dead ends: 42 [2021-10-11 02:24:40,512 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 02:24:40,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:24:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 02:24:40,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-11 02:24:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 02:24:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-11 02:24:40,553 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2021-10-11 02:24:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:40,554 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-11 02:24:40,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-11 02:24:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:24:40,555 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:40,556 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2021-10-11 02:24:40,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:24:40,781 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:40,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:40,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1331312194, now seen corresponding path program 1 times [2021-10-11 02:24:40,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:40,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666951475] [2021-10-11 02:24:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:40,801 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:24:40,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913175174] [2021-10-11 02:24:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:40,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:24:40,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:40,917 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:24:40,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:24:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:24:40,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666951475] [2021-10-11 02:24:40,943 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:40,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913175174] [2021-10-11 02:24:40,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1641759365] [2021-10-11 02:24:40,965 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-11 02:24:40,965 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:24:40,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:24:40,976 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:24:40,976 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:24:41,092 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:24:41,968 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:24:42,199 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2021-10-11 02:24:47,285 WARN L197 SmtUtils]: Spent 5.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 100 [2021-10-11 02:24:48,267 WARN L197 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 104 [2021-10-11 02:24:48,703 WARN L197 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2021-10-11 02:24:48,785 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:24:48,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:24:48,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-11 02:24:48,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691211306] [2021-10-11 02:24:48,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:48,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:48,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:48,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:24:48,788 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2021-10-11 02:24:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:48,820 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 02:24:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:48,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:24:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:48,820 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:24:48,820 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:24:48,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:24:48,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:24:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:24:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:24:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:24:48,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-11 02:24:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:48,823 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:24:48,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:48,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:24:48,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:24:49,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:24:49,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:24:49,088 INFO L258 CegarLoopResult]: At program point L35-3(lines 35 45) the Hoare annotation is: (or (and (<= 1 ~counter~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0) (<= 0 ~counter~0))) [2021-10-11 02:24:49,089 INFO L262 CegarLoopResult]: For program point L35-4(lines 35 45) no Hoare annotation was computed. [2021-10-11 02:24:49,089 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:24:49,089 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:24:49,089 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-10-11 02:24:49,089 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:24:49,089 INFO L258 CegarLoopResult]: At program point L16-2(lines 38 39) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~x~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0)) [2021-10-11 02:24:49,090 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2021-10-11 02:24:49,090 INFO L258 CegarLoopResult]: At program point L16-5(lines 15 21) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:24:49,090 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:24:49,090 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:24:49,090 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2021-10-11 02:24:49,090 INFO L262 CegarLoopResult]: For program point L35-1(lines 35 45) no Hoare annotation was computed. [2021-10-11 02:24:49,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:49 BoogieIcfgContainer [2021-10-11 02:24:49,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:49,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:49,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:49,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:49,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:37" (3/4) ... [2021-10-11 02:24:49,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:24:49,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:24:49,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:24:49,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:24:49,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:49,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6e7699a-bee3-4e96-99ca-49e9b84a5d47/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:49,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:49,164 INFO L168 Benchmark]: Toolchain (without parser) took 12144.01 ms. Allocated memory was 88.1 MB in the beginning and 144.7 MB in the end (delta: 56.6 MB). Free memory was 51.5 MB in the beginning and 66.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,165 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:49,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.31 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 51.3 MB in the beginning and 94.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.99 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,167 INFO L168 Benchmark]: Boogie Preprocessor took 22.61 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,168 INFO L168 Benchmark]: RCFGBuilder took 415.57 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,168 INFO L168 Benchmark]: TraceAbstraction took 11346.13 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 72.9 MB in the beginning and 69.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,169 INFO L168 Benchmark]: Witness Printer took 60.24 ms. Allocated memory is still 144.7 MB. Free memory was 69.3 MB in the beginning and 66.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:49,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 67.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.31 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 51.3 MB in the beginning and 94.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.99 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.61 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 415.57 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11346.13 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 72.9 MB in the beginning and 69.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * Witness Printer took 60.24 ms. Allocated memory is still 144.7 MB. Free memory was 69.3 MB in the beginning and 66.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((1 <= counter && 1 == cond) && z * x + 1 == y + x) || ((x == 1 && z == y) && 0 <= counter) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((1 <= counter && x == 1) && 1 == cond) && z == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.1s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 35 SDslu, 29 SDs, 0 SdLazy, 30 SolverSat, 15 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 44 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 740 SizeOfPredicates, 8 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 18/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...