./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan --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 f9f290650d780763ff3347a7d8ce1c1fff3c6482 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:03,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:03,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:03,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:03,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:03,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:03,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:03,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:03,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:03,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:03,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:03,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:03,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:03,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:03,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:03,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:03,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:03,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:03,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:03,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:03,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:03,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:03,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:03,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:03,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:03,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:03,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:03,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:03,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:03,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:03,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:03,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:03,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:03,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:03,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:03,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:03,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:03,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:03,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:03,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:03,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:03,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:04,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:04,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:04,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:04,025 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:04,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:04,025 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:04,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:04,026 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:04,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:04,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:04,026 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:04,026 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:04,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:04,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:04,027 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:04,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:04,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:04,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:04,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:04,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:04,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:04,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:04,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:04,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:04,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:04,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:04,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:04,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:04,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:04,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:04,032 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:04,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:04,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:04,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:04,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:04,033 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-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9f290650d780763ff3347a7d8ce1c1fff3c6482 [2020-11-22 12:58:04,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:04,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:04,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:04,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:04,376 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:04,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2020-11-22 12:58:04,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/data/9549946d0/1ae5d4a29d694be489ec048d97ae85cc/FLAG4f95f3077 [2020-11-22 12:58:04,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:04,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2020-11-22 12:58:04,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/data/9549946d0/1ae5d4a29d694be489ec048d97ae85cc/FLAG4f95f3077 [2020-11-22 12:58:05,324 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/data/9549946d0/1ae5d4a29d694be489ec048d97ae85cc [2020-11-22 12:58:05,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:05,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:05,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:05,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:05,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:05,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328fcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05, skipping insertion in model container [2020-11-22 12:58:05,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:05,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:05,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:05,599 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:05,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:05,635 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:05,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05 WrapperNode [2020-11-22 12:58:05,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:05,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:05,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:05,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:05,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:05,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:05,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:05,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:05,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... [2020-11-22 12:58:05,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:05,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:05,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:05,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:05,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/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 [2020-11-22 12:58:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:58:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:06,034 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:06,034 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-22 12:58:06,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:06 BoogieIcfgContainer [2020-11-22 12:58:06,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:06,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:06,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:06,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:06,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:05" (1/3) ... [2020-11-22 12:58:06,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e8dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:06, skipping insertion in model container [2020-11-22 12:58:06,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:05" (2/3) ... [2020-11-22 12:58:06,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e8dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:06, skipping insertion in model container [2020-11-22 12:58:06,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:06" (3/3) ... [2020-11-22 12:58:06,047 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound1.c [2020-11-22 12:58:06,070 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:06,086 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 12:58:06,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 12:58:06,164 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:06,164 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:06,164 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:06,165 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:06,165 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:06,165 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:06,165 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:06,165 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-22 12:58:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 12:58:06,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:06,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 12:58:06,198 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:06,204 INFO L82 PathProgramCache]: Analyzing trace with hash 73178710, now seen corresponding path program 1 times [2020-11-22 12:58:06,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:06,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446124487] [2020-11-22 12:58:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:06,288 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:58:06,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842862705] [2020-11-22 12:58:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/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 [2020-11-22 12:58:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:06,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-22 12:58:06,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:06,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:06,622 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 12:58:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:06,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446124487] [2020-11-22 12:58:06,640 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:58:06,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842862705] [2020-11-22 12:58:06,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:06,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:58:06,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569191086] [2020-11-22 12:58:06,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:06,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:06,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:06,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:58:06,661 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2020-11-22 12:58:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:09,030 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2020-11-22 12:58:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:58:09,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-22 12:58:09,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:09,041 INFO L225 Difference]: With dead ends: 45 [2020-11-22 12:58:09,041 INFO L226 Difference]: Without dead ends: 22 [2020-11-22 12:58:09,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:58:09,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-22 12:58:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-11-22 12:58:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-22 12:58:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-22 12:58:09,072 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2020-11-22 12:58:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:09,073 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-22 12:58:09,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:09,073 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-22 12:58:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:58:09,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:09,074 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2020-11-22 12:58:09,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 12:58:09,283 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:09,284 INFO L82 PathProgramCache]: Analyzing trace with hash -2082731538, now seen corresponding path program 1 times [2020-11-22 12:58:09,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:09,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336187022] [2020-11-22 12:58:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:09,290 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:58:09,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683644404] [2020-11-22 12:58:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/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 [2020-11-22 12:58:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:09,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:58:09,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:58:09,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 12:58:09,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336187022] [2020-11-22 12:58:09,409 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:58:09,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683644404] [2020-11-22 12:58:09,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [745160630] [2020-11-22 12:58:09,430 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-11-22 12:58:09,430 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:58:09,434 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:58:09,439 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:58:09,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:58:10,250 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:58:10,501 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-11-22 12:58:11,054 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2020-11-22 12:58:11,730 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-11-22 12:58:12,477 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-11-22 12:58:16,193 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2020-11-22 12:58:16,197 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:58:16,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-22 12:58:16,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-22 12:58:16,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408085163] [2020-11-22 12:58:16,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:16,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:16,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:16,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=61, Unknown=1, NotChecked=0, Total=90 [2020-11-22 12:58:16,200 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2020-11-22 12:58:16,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:16,260 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-22 12:58:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:16,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-22 12:58:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:16,261 INFO L225 Difference]: With dead ends: 19 [2020-11-22 12:58:16,261 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:58:16,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2020-11-22 12:58:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:58:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:58:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:58:16,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:58:16,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-22 12:58:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:16,263 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:58:16,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:58:16,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:58:16,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:58:16,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:58:16,624 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-22 12:58:16,674 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:58:16,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 12:58:16,675 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-22 12:58:16,675 INFO L270 CegarLoopResult]: At program point L15-1(lines 37 38) the Hoare annotation is: (and (<= 1 ~counter~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0))) [2020-11-22 12:58:16,675 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-22 12:58:16,675 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-22 12:58:16,675 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2020-11-22 12:58:16,676 INFO L270 CegarLoopResult]: At program point L34-3(lines 34 43) 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) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ~counter~0) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)))) [2020-11-22 12:58:16,676 INFO L274 CegarLoopResult]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2020-11-22 12:58:16,676 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:58:16,676 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-22 12:58:16,676 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-22 12:58:16,676 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-22 12:58:16,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:16 BoogieIcfgContainer [2020-11-22 12:58:16,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:16,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:16,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:16,711 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:16,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:06" (3/4) ... [2020-11-22 12:58:16,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:58:16,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-22 12:58:16,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 12:58:16,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:58:16,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:58:16,780 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f385cf74-868b-4d1e-92ca-276f24914164/bin/utaipan/witness.graphml [2020-11-22 12:58:16,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:16,787 INFO L168 Benchmark]: Toolchain (without parser) took 11458.54 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 73.9 MB in the beginning and 49.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,788 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:16,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.78 ms. Allocated memory is still 104.9 MB. Free memory was 73.9 MB in the beginning and 81.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.30 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,793 INFO L168 Benchmark]: Boogie Preprocessor took 19.33 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:16,794 INFO L168 Benchmark]: RCFGBuilder took 344.15 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 64.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,794 INFO L168 Benchmark]: TraceAbstraction took 10670.26 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 63.8 MB in the beginning and 51.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,795 INFO L168 Benchmark]: Witness Printer took 75.61 ms. Allocated memory is still 138.4 MB. Free memory was 51.6 MB in the beginning and 49.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:16,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 73.4 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.78 ms. Allocated memory is still 104.9 MB. Free memory was 73.9 MB in the beginning and 81.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.30 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.33 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 344.15 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 64.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10670.26 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 63.8 MB in the beginning and 51.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. * Witness Printer took 75.61 ms. Allocated memory is still 138.4 MB. Free memory was 51.6 MB in the beginning and 49.6 MB in the end (delta: 2.1 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: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((1 <= counter && 1 <= cond) && z * x + a == az * y + x) || (((a == x && y == 1) && 0 <= counter) && az == a * z) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((1 <= counter && a == x) && 1 <= cond) && y == 1) && az == a * z - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.3s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 27 SDslu, 26 SDs, 0 SdLazy, 30 SolverSat, 10 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.0s 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, 9 NumberOfFragments, 53 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 792 SizeOfPredicates, 8 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 14 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...