./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/geo2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7bdada4fc52dad412ed93c40a757100b673eede .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:52:00,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:00,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:00,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:00,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:00,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:00,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:01,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:01,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:01,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:01,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:01,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:01,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:01,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:01,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:01,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:01,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:01,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:01,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:01,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:01,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:01,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:01,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:01,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:01,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:01,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:01,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:01,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:01,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:01,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:01,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:01,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:01,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:01,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:01,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:01,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:01,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:01,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:01,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:01,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:01,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:01,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:01,069 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:01,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:01,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:01,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:01,070 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:01,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:01,071 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:01,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:01,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:01,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:01,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:01,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:01,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:01,072 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:01,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:01,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:01,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:01,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:01,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:01,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:01,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:01,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:01,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:01,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:01,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:01,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:01,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:01,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:01,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer 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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7bdada4fc52dad412ed93c40a757100b673eede [2019-11-25 08:52:01,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:01,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:01,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:01,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:01,278 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:01,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/geo2.c [2019-11-25 08:52:01,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/data/4606c1ded/a1d3546413d143029d3b1cd738957deb/FLAGf3194d20f [2019-11-25 08:52:01,700 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:01,701 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/sv-benchmarks/c/nla-digbench/geo2.c [2019-11-25 08:52:01,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/data/4606c1ded/a1d3546413d143029d3b1cd738957deb/FLAGf3194d20f [2019-11-25 08:52:02,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/data/4606c1ded/a1d3546413d143029d3b1cd738957deb [2019-11-25 08:52:02,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:02,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:02,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:02,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:02,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:02,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a98572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02, skipping insertion in model container [2019-11-25 08:52:02,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:02,115 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:02,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:02,262 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:02,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:02,350 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:02,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02 WrapperNode [2019-11-25 08:52:02,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:02,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:02,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:02,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:02,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:02,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:02,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:02,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:02,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... [2019-11-25 08:52:02,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:02,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:02,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:02,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:02,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/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 [2019-11-25 08:52:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:02,675 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:02,676 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:52:02,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:02 BoogieIcfgContainer [2019-11-25 08:52:02,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:02,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:02,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:02,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:02,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:02" (1/3) ... [2019-11-25 08:52:02,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6926e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:02, skipping insertion in model container [2019-11-25 08:52:02,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:02" (2/3) ... [2019-11-25 08:52:02,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6926e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:02, skipping insertion in model container [2019-11-25 08:52:02,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:02" (3/3) ... [2019-11-25 08:52:02,691 INFO L109 eAbstractionObserver]: Analyzing ICFG geo2.c [2019-11-25 08:52:02,699 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:02,704 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 08:52:02,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 08:52:02,734 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:02,735 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:02,735 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:02,735 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:02,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:02,735 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:02,735 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:02,735 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-25 08:52:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:52:02,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:02,755 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:52:02,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:02,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:02,762 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-25 08:52:02,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:02,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847201448] [2019-11-25 08:52:02,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:02,835 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:52:02,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047036229] [2019-11-25 08:52:02,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/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 [2019-11-25 08:52:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:02,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:52:02,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:02,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847201448] [2019-11-25 08:52:02,933 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:52:02,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047036229] [2019-11-25 08:52:02,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:02,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:02,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981307925] [2019-11-25 08:52:02,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:52:02,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:02,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:52:02,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:52:02,954 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-25 08:52:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:03,021 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-11-25 08:52:03,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:03,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-25 08:52:03,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:03,032 INFO L225 Difference]: With dead ends: 37 [2019-11-25 08:52:03,032 INFO L226 Difference]: Without dead ends: 14 [2019-11-25 08:52:03,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-25 08:52:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-25 08:52:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-25 08:52:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-25 08:52:03,063 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-11-25 08:52:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:03,064 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-25 08:52:03,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:52:03,064 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-25 08:52:03,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-25 08:52:03,064 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:03,065 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-25 08:52:03,282 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:03,282 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:03,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1360983589, now seen corresponding path program 1 times [2019-11-25 08:52:03,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:03,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859982557] [2019-11-25 08:52:03,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:03,290 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:52:03,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147251936] [2019-11-25 08:52:03,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/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 [2019-11-25 08:52:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:03,326 WARN L253 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-25 08:52:03,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:03,388 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:03,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:03,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:03,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859982557] [2019-11-25 08:52:03,469 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:52:03,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147251936] [2019-11-25 08:52:03,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:52:03,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-25 08:52:03,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48954866] [2019-11-25 08:52:03,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:03,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:03,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:03,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:03,472 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2019-11-25 08:52:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:03,591 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-11-25 08:52:03,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:03,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-25 08:52:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:03,594 INFO L225 Difference]: With dead ends: 23 [2019-11-25 08:52:03,594 INFO L226 Difference]: Without dead ends: 17 [2019-11-25 08:52:03,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-25 08:52:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-25 08:52:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-25 08:52:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-25 08:52:03,600 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-11-25 08:52:03,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:03,600 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-25 08:52:03,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-25 08:52:03,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:52:03,604 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:03,608 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-25 08:52:03,813 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:03,814 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:03,814 INFO L82 PathProgramCache]: Analyzing trace with hash -565900116, now seen corresponding path program 2 times [2019-11-25 08:52:03,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:03,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691074802] [2019-11-25 08:52:03,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:03,820 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:52:03,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905429413] [2019-11-25 08:52:03,820 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:03,859 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:52:03,860 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:52:03,861 WARN L253 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-25 08:52:03,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:03,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:04,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:04,064 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691074802] [2019-11-25 08:52:04,064 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:52:04,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905429413] [2019-11-25 08:52:04,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:52:04,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-11-25 08:52:04,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906461666] [2019-11-25 08:52:04,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:52:04,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:52:04,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:04,067 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2019-11-25 08:52:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:04,259 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-25 08:52:04,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:04,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-25 08:52:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:04,260 INFO L225 Difference]: With dead ends: 26 [2019-11-25 08:52:04,260 INFO L226 Difference]: Without dead ends: 20 [2019-11-25 08:52:04,261 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:52:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-25 08:52:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-25 08:52:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-25 08:52:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-25 08:52:04,266 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-11-25 08:52:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:04,267 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-25 08:52:04,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:52:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-25 08:52:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:52:04,268 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:04,268 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-11-25 08:52:04,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:04,469 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:04,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:04,469 INFO L82 PathProgramCache]: Analyzing trace with hash -978793413, now seen corresponding path program 3 times [2019-11-25 08:52:04,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:04,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747535862] [2019-11-25 08:52:04,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:04,474 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-25 08:52:04,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372137684] [2019-11-25 08:52:04,474 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:04,516 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-25 08:52:04,516 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:52:04,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-25 08:52:04,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:08,297 WARN L192 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-11-25 08:52:08,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:08,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:08,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-25 08:52:08,404 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747535862] [2019-11-25 08:52:08,404 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-25 08:52:08,404 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372137684] [2019-11-25 08:52:08,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-25 08:52:08,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-25 08:52:08,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293320962] [2019-11-25 08:52:08,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:08,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:08,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:08,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:08,406 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-11-25 08:52:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:10,525 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-25 08:52:10,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:52:10,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-25 08:52:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:10,526 INFO L225 Difference]: With dead ends: 19 [2019-11-25 08:52:10,526 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:52:10,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=28, Invalid=43, Unknown=1, NotChecked=0, Total=72 [2019-11-25 08:52:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:52:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:52:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:52:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:52:10,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-25 08:52:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:10,528 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:52:10,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:52:10,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:52:10,729 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:10,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:52:10,863 INFO L440 ceAbstractionStarter]: At program point L28-2(lines 28 37) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 1)) (and (exists ((v_ULTIMATE.start_main_~y~0_13 Int) (v_ULTIMATE.start_main_~x~0_13 Int)) (let ((.cse0 (+ (* v_ULTIMATE.start_main_~x~0_13 ULTIMATE.start_main_~z~0) 1))) (and (= .cse0 (+ (* ULTIMATE.start_main_~z~0 v_ULTIMATE.start_main_~y~0_13) v_ULTIMATE.start_main_~x~0_13)) (= ULTIMATE.start_main_~x~0 .cse0) (= ULTIMATE.start_main_~y~0 (* v_ULTIMATE.start_main_~y~0_13 ULTIMATE.start_main_~z~0))))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-11-25 08:52:10,864 INFO L444 ceAbstractionStarter]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2019-11-25 08:52:10,864 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-25 08:52:10,864 INFO L444 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-11-25 08:52:10,864 INFO L440 ceAbstractionStarter]: At program point L10-2(lines 31 32) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (and .cse0 (= ULTIMATE.start_main_~x~0 1) (= ULTIMATE.start_main_~y~0 1)) (and (exists ((v_ULTIMATE.start_main_~y~0_13 Int) (v_ULTIMATE.start_main_~x~0_13 Int)) (let ((.cse1 (+ (* v_ULTIMATE.start_main_~x~0_13 ULTIMATE.start_main_~z~0) 1))) (and (= .cse1 (+ (* ULTIMATE.start_main_~z~0 v_ULTIMATE.start_main_~y~0_13) v_ULTIMATE.start_main_~x~0_13)) (= ULTIMATE.start_main_~x~0 .cse1) (= ULTIMATE.start_main_~y~0 (* v_ULTIMATE.start_main_~y~0_13 ULTIMATE.start_main_~z~0))))) .cse0))) [2019-11-25 08:52:10,864 INFO L444 ceAbstractionStarter]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2019-11-25 08:52:10,864 INFO L447 ceAbstractionStarter]: At program point L39(lines 18 40) the Hoare annotation is: true [2019-11-25 08:52:10,864 INFO L447 ceAbstractionStarter]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2019-11-25 08:52:10,869 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,883 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:10 BoogieIcfgContainer [2019-11-25 08:52:10,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:10,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:10,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:10,887 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:10,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:02" (3/4) ... [2019-11-25 08:52:10,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:52:10,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 08:52:10,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:52:10,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == 1 && y == 1) || ((\exists v_ULTIMATE.start_main_~y~0_13 : int, v_ULTIMATE.start_main_~x~0_13 : int :: (v_ULTIMATE.start_main_~x~0_13 * z + 1 == z * v_ULTIMATE.start_main_~y~0_13 + v_ULTIMATE.start_main_~x~0_13 && x == v_ULTIMATE.start_main_~x~0_13 * z + 1) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) [2019-11-25 08:52:10,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == cond && x == 1) && y == 1) || ((\exists v_ULTIMATE.start_main_~y~0_13 : int, v_ULTIMATE.start_main_~x~0_13 : int :: (v_ULTIMATE.start_main_~x~0_13 * z + 1 == z * v_ULTIMATE.start_main_~y~0_13 + v_ULTIMATE.start_main_~x~0_13 && x == v_ULTIMATE.start_main_~x~0_13 * z + 1) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) [2019-11-25 08:52:10,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8e259fb-c521-4a4c-8b4e-6855d4fc1921/bin/uautomizer/witness.graphml [2019-11-25 08:52:10,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:10,952 INFO L168 Benchmark]: Toolchain (without parser) took 8870.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 958.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:10,952 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:10,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:10,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:10,953 INFO L168 Benchmark]: Boogie Preprocessor took 22.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:10,954 INFO L168 Benchmark]: RCFGBuilder took 268.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:10,954 INFO L168 Benchmark]: TraceAbstraction took 8208.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.3 MB in the end (delta: 139.6 MB). Peak memory consumption was 139.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:10,955 INFO L168 Benchmark]: Witness Printer took 63.93 ms. Allocated memory is still 1.2 GB. Free memory was 964.3 MB in the beginning and 958.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:10,957 INFO L335 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 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 268.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8208.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.3 MB in the end (delta: 139.6 MB). Peak memory consumption was 139.6 MB. Max. memory is 11.5 GB. * Witness Printer took 63.93 ms. Allocated memory is still 1.2 GB. Free memory was 964.3 MB in the beginning and 958.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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: 28]: Loop Invariant [2019-11-25 08:52:10,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,968 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] Derived loop invariant: (x == 1 && y == 1) || ((\exists v_ULTIMATE.start_main_~y~0_13 : int, v_ULTIMATE.start_main_~x~0_13 : int :: (v_ULTIMATE.start_main_~x~0_13 * z + 1 == z * v_ULTIMATE.start_main_~y~0_13 + v_ULTIMATE.start_main_~x~0_13 && x == v_ULTIMATE.start_main_~x~0_13 * z + 1) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant [2019-11-25 08:52:10,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-25 08:52:10,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-25 08:52:10,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] Derived loop invariant: ((1 == cond && x == 1) && y == 1) || ((\exists v_ULTIMATE.start_main_~y~0_13 : int, v_ULTIMATE.start_main_~x~0_13 : int :: (v_ULTIMATE.start_main_~x~0_13 * z + 1 == z * v_ULTIMATE.start_main_~y~0_13 + v_ULTIMATE.start_main_~x~0_13 && x == v_ULTIMATE.start_main_~x~0_13 * z + 1) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: SAFE, OverallTime: 8.1s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 24 SDtfs, 39 SDslu, 64 SDs, 0 SdLazy, 102 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 79 HoareAnnotationTreeSize, 4 FomulaSimplifications, 220 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 7 QuantifiedInterpolants, 2916 SizeOfPredicates, 32 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 13/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...