./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 f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/geo2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__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 0.1.25-f470102 [2019-11-28 17:11:31,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:11:31,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:11:31,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:11:31,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:11:31,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:11:31,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:11:31,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:11:31,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:11:31,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:11:31,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:11:31,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:11:31,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:11:31,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:11:31,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:11:31,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:11:31,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:11:31,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:11:31,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:11:31,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:11:31,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:11:31,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:11:31,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:11:31,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:11:31,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:11:31,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:11:31,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:11:31,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:11:31,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:11:31,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:11:31,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:11:31,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:11:31,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:11:31,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:11:31,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:11:31,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:11:31,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:11:31,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:11:31,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:11:31,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:11:31,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:11:31,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:11:31,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:11:31,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:11:31,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:11:31,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:11:31,854 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:11:31,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:11:31,855 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:11:31,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:11:31,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:11:31,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:11:31,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:11:31,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:11:31,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:11:31,857 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:11:31,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:11:31,857 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:11:31,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:11:31,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:11:31,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:11:31,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:11:31,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:11:31,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:11:31,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:11:31,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:11:31,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:11:31,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:11:31,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:11:31,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:11:31,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:11:31,861 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 [2019-11-28 17:11:32,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:11:32,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:11:32,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:11:32,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:11:32,182 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:11:32,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/geo2.c [2019-11-28 17:11:32,241 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a02d365d/0df6b80216c74762b7f27b1014180851/FLAGa3fcaf434 [2019-11-28 17:11:32,662 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:11:32,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo2.c [2019-11-28 17:11:32,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a02d365d/0df6b80216c74762b7f27b1014180851/FLAGa3fcaf434 [2019-11-28 17:11:32,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a02d365d/0df6b80216c74762b7f27b1014180851 [2019-11-28 17:11:32,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:11:32,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:11:33,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:11:33,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:11:33,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:11:33,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:32" (1/1) ... [2019-11-28 17:11:33,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48a79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33, skipping insertion in model container [2019-11-28 17:11:33,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:32" (1/1) ... [2019-11-28 17:11:33,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:11:33,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:11:33,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:11:33,205 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:11:33,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:11:33,231 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:11:33,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33 WrapperNode [2019-11-28 17:11:33,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:11:33,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:11:33,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:11:33,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:11:33,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:11:33,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:11:33,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:11:33,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:11:33,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... [2019-11-28 17:11:33,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:11:33,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:11:33,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:11:33,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:11:33,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:11:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:11:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:11:33,592 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:11:33,592 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 17:11:33,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:33 BoogieIcfgContainer [2019-11-28 17:11:33,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:11:33,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:11:33,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:11:33,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:11:33,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:11:32" (1/3) ... [2019-11-28 17:11:33,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1355a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:33, skipping insertion in model container [2019-11-28 17:11:33,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:33" (2/3) ... [2019-11-28 17:11:33,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1355a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:33, skipping insertion in model container [2019-11-28 17:11:33,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:33" (3/3) ... [2019-11-28 17:11:33,602 INFO L109 eAbstractionObserver]: Analyzing ICFG geo2.c [2019-11-28 17:11:33,611 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:11:33,618 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 17:11:33,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 17:11:33,655 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:11:33,656 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:11:33,656 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:11:33,656 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:11:33,656 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:11:33,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:11:33,657 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:11:33,657 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:11:33,670 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 17:11:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 17:11:33,674 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:33,675 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 17:11:33,676 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:33,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:33,681 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 17:11:33,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:33,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379120330] [2019-11-28 17:11:33,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:33,756 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:33,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799859358] [2019-11-28 17:11:33,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:11:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:11:33,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 17:11:33,806 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:33,869 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379120330] [2019-11-28 17:11:33,869 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:33,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799859358] [2019-11-28 17:11:33,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:11:33,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:11:33,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939449674] [2019-11-28 17:11:33,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:11:33,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:33,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:11:33,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:11:33,946 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-11-28 17:11:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:34,038 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-11-28 17:11:34,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:11:34,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 17:11:34,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:34,050 INFO L225 Difference]: With dead ends: 37 [2019-11-28 17:11:34,051 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 17:11:34,054 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 [2019-11-28 17:11:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 17:11:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-28 17:11:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 17:11:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-28 17:11:34,089 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-11-28 17:11:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:34,090 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-28 17:11:34,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:11:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-28 17:11:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:11:34,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:34,091 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-28 17:11:34,295 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:34,295 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1360983589, now seen corresponding path program 1 times [2019-11-28 17:11:34,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:34,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20426446] [2019-11-28 17:11:34,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:34,305 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:34,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065631519] [2019-11-28 17:11:34,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:11:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:11:34,339 WARN L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 17:11:34,341 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:34,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:34,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:34,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20426446] [2019-11-28 17:11:34,509 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:34,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065631519] [2019-11-28 17:11:34,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:34,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-11-28 17:11:34,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159150807] [2019-11-28 17:11:34,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:11:34,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:34,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:11:34,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:11:34,516 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2019-11-28 17:11:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:34,643 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-11-28 17:11:34,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:11:34,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-28 17:11:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:34,646 INFO L225 Difference]: With dead ends: 23 [2019-11-28 17:11:34,646 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 17:11:34,647 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 [2019-11-28 17:11:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 17:11:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 17:11:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 17:11:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-28 17:11:34,659 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-11-28 17:11:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:34,660 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-28 17:11:34,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:11:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-28 17:11:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:11:34,662 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:34,663 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-11-28 17:11:34,863 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:34,864 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:34,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:34,865 INFO L82 PathProgramCache]: Analyzing trace with hash -565900116, now seen corresponding path program 2 times [2019-11-28 17:11:34,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:34,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021065986] [2019-11-28 17:11:34,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:34,873 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:34,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172300647] [2019-11-28 17:11:34,873 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-28 17:11:34,906 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-28 17:11:34,906 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:34,908 WARN L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-28 17:11:34,910 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:34,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:35,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:11:35,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021065986] [2019-11-28 17:11:35,102 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:35,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172300647] [2019-11-28 17:11:35,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:35,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-11-28 17:11:35,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41229163] [2019-11-28 17:11:35,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 17:11:35,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:35,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 17:11:35,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:11:35,105 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2019-11-28 17:11:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:35,270 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-28 17:11:35,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:11:35,271 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-11-28 17:11:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:35,272 INFO L225 Difference]: With dead ends: 26 [2019-11-28 17:11:35,272 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 17:11:35,273 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 [2019-11-28 17:11:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 17:11:35,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-28 17:11:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 17:11:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-28 17:11:35,280 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-11-28 17:11:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:35,281 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-28 17:11:35,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 17:11:35,281 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-28 17:11:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 17:11:35,282 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:11:35,282 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-11-28 17:11:35,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:35,487 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:11:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:11:35,487 INFO L82 PathProgramCache]: Analyzing trace with hash -978793413, now seen corresponding path program 3 times [2019-11-28 17:11:35,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:11:35,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176781058] [2019-11-28 17:11:35,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:11:35,493 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 17:11:35,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818370952] [2019-11-28 17:11:35,493 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:11:35,527 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 17:11:35,528 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 17:11:35,529 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-28 17:11:35,530 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:11:38,694 WARN L192 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-11-28 17:11:38,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:38,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:38,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:11:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-28 17:11:38,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176781058] [2019-11-28 17:11:38,810 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 17:11:38,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818370952] [2019-11-28 17:11:38,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:11:38,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-11-28 17:11:38,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871475479] [2019-11-28 17:11:38,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:11:38,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:11:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:11:38,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:11:38,817 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-11-28 17:11:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:11:41,049 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-28 17:11:41,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:11:41,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-28 17:11:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:11:41,050 INFO L225 Difference]: With dead ends: 19 [2019-11-28 17:11:41,050 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:11:41,051 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=28, Invalid=43, Unknown=1, NotChecked=0, Total=72 [2019-11-28 17:11:41,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:11:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:11:41,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:11:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:11:41,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-28 17:11:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:11:41,053 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:11:41,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:11:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:11:41,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:11:41,254 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:11:41,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:11:41,382 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:11:41,382 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-28 17:11:41,383 INFO L246 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-11-28 17:11:41,383 INFO L246 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2019-11-28 17:11:41,383 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:11:41,383 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:11:41,383 INFO L242 CegarLoopResult]: 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))) [2019-11-28 17:11:41,383 INFO L246 CegarLoopResult]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2019-11-28 17:11:41,384 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-28 17:11:41,384 INFO L246 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-11-28 17:11:41,384 INFO L242 CegarLoopResult]: 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))) [2019-11-28 17:11:41,384 INFO L246 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2019-11-28 17:11:41,384 INFO L249 CegarLoopResult]: At program point L39(lines 18 40) the Hoare annotation is: true [2019-11-28 17:11:41,385 INFO L249 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2019-11-28 17:11:41,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:11:41 BoogieIcfgContainer [2019-11-28 17:11:41,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:11:41,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:11:41,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:11:41,411 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:11:41,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:33" (3/4) ... [2019-11-28 17:11:41,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:11:41,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 17:11:41,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:11:41,454 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) [2019-11-28 17:11:41,454 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) [2019-11-28 17:11:41,474 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:11:41,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:11:41,476 INFO L168 Benchmark]: Toolchain (without parser) took 8476.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 961.7 MB in the beginning and 955.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,477 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:11:41,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,479 INFO L168 Benchmark]: Boogie Preprocessor took 37.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,480 INFO L168 Benchmark]: RCFGBuilder took 232.66 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,481 INFO L168 Benchmark]: TraceAbstraction took 7815.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.4 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,481 INFO L168 Benchmark]: Witness Printer took 64.24 ms. Allocated memory is still 1.2 GB. Free memory was 968.4 MB in the beginning and 955.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:11:41,486 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.66 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7815.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.4 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. * Witness Printer took 64.24 ms. Allocated memory is still 1.2 GB. Free memory was 968.4 MB in the beginning and 955.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 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 [2019-11-28 17:11:41,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,499 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 [2019-11-28 17:11:41,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-11-28 17:11:41,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_13,QUANTIFIED] [2019-11-28 17:11:41,502 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: 7.6s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 2.6s, 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, 5.8s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.7s 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...