./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/geo3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 621354e75a4dc77844a059d87a5ec1b455e0adaa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:24,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:24,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:24,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:24,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:24,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:24,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:24,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:24,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:24,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:24,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:24,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:24,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:24,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:24,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:24,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:24,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:24,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:24,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:24,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:24,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:24,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:24,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:24,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:24,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:24,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:24,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:24,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:24,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:24,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:24,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:24,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:24,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:24,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:24,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:24,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:24,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:24,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:24,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:24,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:24,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:24,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:24,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:24,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:24,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:24,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:24,162 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:24,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:24,163 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:24,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:24,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:24,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:24,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:24,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:24,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:24,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:24,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:24,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:24,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:24,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:24,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:24,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:24,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:24,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:24,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:24,167 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/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 -> 621354e75a4dc77844a059d87a5ec1b455e0adaa [2019-10-22 09:00:24,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:24,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:24,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:24,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:24,211 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:24,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/geo3.c [2019-10-22 09:00:24,265 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/data/e86929bce/74a94b51ac2148499b5d641db761133a/FLAG76ebbfbc3 [2019-10-22 09:00:24,666 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:24,666 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/sv-benchmarks/c/nla-digbench/geo3.c [2019-10-22 09:00:24,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/data/e86929bce/74a94b51ac2148499b5d641db761133a/FLAG76ebbfbc3 [2019-10-22 09:00:25,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/data/e86929bce/74a94b51ac2148499b5d641db761133a [2019-10-22 09:00:25,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:25,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:25,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:25,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:25,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:25,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0cc11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25, skipping insertion in model container [2019-10-22 09:00:25,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,094 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:25,105 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:25,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:25,237 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:25,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:25,325 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:25,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25 WrapperNode [2019-10-22 09:00:25,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:25,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:25,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:25,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:25,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:25,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:25,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:25,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:25,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... [2019-10-22 09:00:25,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:25,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:25,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:25,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:25,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 [2019-10-22 09:00:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:25,553 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:25,553 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 09:00:25,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:25 BoogieIcfgContainer [2019-10-22 09:00:25,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:25,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:25,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:25,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:25,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:25" (1/3) ... [2019-10-22 09:00:25,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47feed26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:25, skipping insertion in model container [2019-10-22 09:00:25,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:25" (2/3) ... [2019-10-22 09:00:25,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47feed26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:25, skipping insertion in model container [2019-10-22 09:00:25,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:25" (3/3) ... [2019-10-22 09:00:25,562 INFO L109 eAbstractionObserver]: Analyzing ICFG geo3.c [2019-10-22 09:00:25,570 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:25,576 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 09:00:25,586 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 09:00:25,605 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:25,606 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:25,606 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:25,606 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:25,606 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:25,606 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:25,606 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:25,606 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-22 09:00:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 09:00:25,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:25,624 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 09:00:25,625 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-10-22 09:00:25,637 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:25,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263704513] [2019-10-22 09:00:25,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:25,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:25,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:25,700 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:00:25,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370702058] [2019-10-22 09:00:25,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 [2019-10-22 09:00:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:25,731 WARN L254 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 09:00:25,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:25,806 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263704513] [2019-10-22 09:00:25,806 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:00:25,806 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370702058] [2019-10-22 09:00:25,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:25,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:00:25,807 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760808962] [2019-10-22 09:00:25,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:25,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:25,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:25,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:25,826 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-10-22 09:00:25,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:25,915 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-10-22 09:00:25,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:00:25,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 09:00:25,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:25,926 INFO L225 Difference]: With dead ends: 37 [2019-10-22 09:00:25,927 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 09:00:25,930 INFO L600 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 [2019-10-22 09:00:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 09:00:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-10-22 09:00:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 09:00:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-22 09:00:25,962 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2019-10-22 09:00:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:25,962 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-22 09:00:25,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-22 09:00:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:00:25,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:25,963 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-10-22 09:00:26,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:26,164 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:26,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:26,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1360983589, now seen corresponding path program 1 times [2019-10-22 09:00:26,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:26,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061082320] [2019-10-22 09:00:26,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:26,170 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:00:26,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019638101] [2019-10-22 09:00:26,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 [2019-10-22 09:00:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:26,199 WARN L254 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-22 09:00:26,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:26,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061082320] [2019-10-22 09:00:26,297 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:00:26,297 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019638101] [2019-10-22 09:00:26,297 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:26,297 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-10-22 09:00:26,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886192032] [2019-10-22 09:00:26,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:26,299 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:26,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:26,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:26,299 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-10-22 09:00:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:26,397 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-10-22 09:00:26,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:26,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-10-22 09:00:26,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:26,399 INFO L225 Difference]: With dead ends: 23 [2019-10-22 09:00:26,399 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 09:00:26,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:00:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 09:00:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-10-22 09:00:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 09:00:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-22 09:00:26,403 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-10-22 09:00:26,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:26,403 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-22 09:00:26,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:26,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-22 09:00:26,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:26,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:26,404 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-10-22 09:00:26,607 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:26,607 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:26,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:26,608 INFO L82 PathProgramCache]: Analyzing trace with hash -565900116, now seen corresponding path program 2 times [2019-10-22 09:00:26,608 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:26,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164702269] [2019-10-22 09:00:26,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:26,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:26,615 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:00:26,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904377316] [2019-10-22 09:00:26,616 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 [2019-10-22 09:00:26,641 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:00:26,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:00:26,643 WARN L254 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-22 09:00:26,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:26,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164702269] [2019-10-22 09:00:26,769 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:00:26,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904377316] [2019-10-22 09:00:26,770 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:26,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-10-22 09:00:26,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84610306] [2019-10-22 09:00:26,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:26,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:26,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:26,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:26,771 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2019-10-22 09:00:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:28,961 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-10-22 09:00:28,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:28,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-22 09:00:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:28,962 INFO L225 Difference]: With dead ends: 26 [2019-10-22 09:00:28,962 INFO L226 Difference]: Without dead ends: 20 [2019-10-22 09:00:28,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-22 09:00:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-22 09:00:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 09:00:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-22 09:00:28,967 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-10-22 09:00:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:28,967 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-22 09:00:28,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-22 09:00:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 09:00:28,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:28,968 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2019-10-22 09:00:29,168 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:00:29,169 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:29,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:29,169 INFO L82 PathProgramCache]: Analyzing trace with hash -978793413, now seen corresponding path program 3 times [2019-10-22 09:00:29,169 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:29,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128590006] [2019-10-22 09:00:29,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:29,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:29,174 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 09:00:29,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510254596] [2019-10-22 09:00:29,174 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/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 [2019-10-22 09:00:29,205 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-22 09:00:29,206 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:00:29,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 24 conjunts are in the unsatisfiable core [2019-10-22 09:00:29,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:31,264 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 28 [2019-10-22 09:00:31,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:33,290 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 Int) (ULTIMATE.start_main_~y~0 Int)) (= (+ (* (* c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0) (+ c_ULTIMATE.start_main_~a~0 (* c_ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)))) is different from true [2019-10-22 09:00:39,411 WARN L191 SmtUtils]: Spent 6.09 s on a formula simplification that was a NOOP. DAG size: 27 [2019-10-22 09:00:39,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:41,451 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 19 [2019-10-22 09:00:43,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:00:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 7 not checked. [2019-10-22 09:00:43,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128590006] [2019-10-22 09:00:43,529 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 09:00:43,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510254596] [2019-10-22 09:00:43,529 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:00:43,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-22 09:00:43,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360830541] [2019-10-22 09:00:43,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:43,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:43,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:43,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2019-10-22 09:00:43,531 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 8 states. [2019-10-22 09:00:55,627 WARN L191 SmtUtils]: Spent 6.06 s on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2019-10-22 09:01:00,080 WARN L191 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-22 09:01:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:02,145 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-22 09:01:02,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:02,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-10-22 09:01:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:02,146 INFO L225 Difference]: With dead ends: 19 [2019-10-22 09:01:02,146 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:01:02,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=30, Invalid=43, Unknown=3, NotChecked=14, Total=90 [2019-10-22 09:01:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:01:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:01:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:01:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:01:02,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-22 09:01:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:02,148 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:02,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:01:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:02,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:01:02,349 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:01:02,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:01:15,909 WARN L191 SmtUtils]: Spent 13.53 s on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2019-10-22 09:01:15,920 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:01:15,920 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1)) (and (exists ((v_ULTIMATE.start_main_~x~0_14 Int) (v_ULTIMATE.start_main_~y~0_13 Int)) (and (= (+ (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 v_ULTIMATE.start_main_~x~0_14)) (+ v_ULTIMATE.start_main_~x~0_14 (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) v_ULTIMATE.start_main_~y~0_13))) (= ULTIMATE.start_main_~y~0 (* v_ULTIMATE.start_main_~y~0_13 ULTIMATE.start_main_~z~0)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-10-22 09:01:15,920 INFO L443 ceAbstractionStarter]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L446 ceAbstractionStarter]: At program point L38(lines 16 39) the Hoare annotation is: true [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-10-22 09:01:15,921 INFO L439 ceAbstractionStarter]: At program point L10-2(lines 30 31) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_ULTIMATE.start_main_~x~0_14 Int) (v_ULTIMATE.start_main_~y~0_13 Int)) (and (= (+ (* v_ULTIMATE.start_main_~x~0_14 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~a~0) ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 v_ULTIMATE.start_main_~x~0_14)) (+ v_ULTIMATE.start_main_~x~0_14 (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) v_ULTIMATE.start_main_~y~0_13))) (= ULTIMATE.start_main_~y~0 (* v_ULTIMATE.start_main_~y~0_13 ULTIMATE.start_main_~z~0)))) .cse0) (and (exists ((v_prenex_4 Int) (v_prenex_3 Int)) (= (+ v_prenex_3 (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) v_prenex_4)) (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 v_prenex_3)))) .cse0 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1)))) [2019-10-22 09:01:15,922 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-22 09:01:15,922 INFO L443 ceAbstractionStarter]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2019-10-22 09:01:15,922 INFO L446 ceAbstractionStarter]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2019-10-22 09:01:15,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:15,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2019-10-22 09:01:15,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:15,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:15,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2019-10-22 09:01:15,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:15,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:15,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:15,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:15 BoogieIcfgContainer [2019-10-22 09:01:15,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:15,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:15,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:15,943 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:15,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:25" (3/4) ... [2019-10-22 09:01:15,947 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:01:15,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:01:15,955 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:01:15,980 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (a == x && y == 1) || ((\exists v_ULTIMATE.start_main_~x~0_14 : int, v_ULTIMATE.start_main_~y~0_13 : int :: (v_ULTIMATE.start_main_~x~0_14 * z + a == x && a + z * v_ULTIMATE.start_main_~x~0_14 == v_ULTIMATE.start_main_~x~0_14 + a * z * v_ULTIMATE.start_main_~y~0_13) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) [2019-10-22 09:01:15,981 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~x~0_14 : int, v_ULTIMATE.start_main_~y~0_13 : int :: (v_ULTIMATE.start_main_~x~0_14 * z + a == x && a + z * v_ULTIMATE.start_main_~x~0_14 == v_ULTIMATE.start_main_~x~0_14 + a * z * v_ULTIMATE.start_main_~y~0_13) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) || ((((\exists v_prenex_4 : int, v_prenex_3 : int :: v_prenex_3 + a * z * v_prenex_4 == a + z * v_prenex_3) && 1 == cond) && a == x) && y == 1) [2019-10-22 09:01:15,997 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d233c715-4985-476b-b58b-181e4fb255cb/bin/uautomizer/witness.graphml [2019-10-22 09:01:15,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:15,998 INFO L168 Benchmark]: Toolchain (without parser) took 50921.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 971.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:15,999 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:15,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:16,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.33 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. [2019-10-22 09:01:16,000 INFO L168 Benchmark]: Boogie Preprocessor took 14.77 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. [2019-10-22 09:01:16,001 INFO L168 Benchmark]: RCFGBuilder took 180.43 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:16,001 INFO L168 Benchmark]: TraceAbstraction took 50386.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:16,001 INFO L168 Benchmark]: Witness Printer took 54.72 ms. Allocated memory is still 1.2 GB. Free memory is still 971.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:16,003 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.33 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 14.77 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 180.43 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 50386.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. * Witness Printer took 54.72 ms. Allocated memory is still 1.2 GB. Free memory is still 971.3 MB. There was no memory consumed. 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_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,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_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,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_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,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_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,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_~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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2019-10-22 09:01:16,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2019-10-22 09:01:16,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:16,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] [2019-10-22 09:01:16,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2019-10-22 09:01:16,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_3,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~x~0_14 : int, v_ULTIMATE.start_main_~y~0_13 : int :: (v_ULTIMATE.start_main_~x~0_14 * z + a == x && a + z * v_ULTIMATE.start_main_~x~0_14 == v_ULTIMATE.start_main_~x~0_14 + a * z * v_ULTIMATE.start_main_~y~0_13) && y == v_ULTIMATE.start_main_~y~0_13 * z) && 1 == cond) || ((((\exists v_prenex_4 : int, v_prenex_3 : int :: v_prenex_3 + a * z * v_prenex_4 == a + z * v_prenex_3) && 1 == cond) && a == x) && y == 1) - InvariantResult [Line: 27]: Loop Invariant [2019-10-22 09:01:16,014 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,014 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,014 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~x~0_14,QUANTIFIED] [2019-10-22 09:01:16,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] [2019-10-22 09:01:16,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_13,QUANTIFIED] Derived loop invariant: (a == x && y == 1) || ((\exists v_ULTIMATE.start_main_~x~0_14 : int, v_ULTIMATE.start_main_~y~0_13 : int :: (v_ULTIMATE.start_main_~x~0_14 * z + a == x && a + z * v_ULTIMATE.start_main_~x~0_14 == v_ULTIMATE.start_main_~x~0_14 + a * z * v_ULTIMATE.start_main_~y~0_13) && 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: 50.3s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.5s, HoareTripleCheckerStatistics: 24 SDtfs, 35 SDslu, 52 SDs, 0 SdLazy, 87 SolverSat, 34 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 29.0s 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, 97 HoareAnnotationTreeSize, 4 FomulaSimplifications, 176 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 13.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 34 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 30 ConstructedInterpolants, 9 QuantifiedInterpolants, 3780 SizeOfPredicates, 36 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 7/24 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...