./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c49ca63b076bdfdfd4da2b39429bac3c0da8332d ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:53:08,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:53:08,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:53:08,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:53:08,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:53:08,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:53:08,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:53:08,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:53:08,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:53:08,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:53:08,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:53:08,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:53:08,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:53:08,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:53:08,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:53:08,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:53:08,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:53:08,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:53:08,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:53:08,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:53:08,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:53:08,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:53:08,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:53:08,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:53:08,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:53:08,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:53:08,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:53:08,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:53:08,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:53:08,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:53:08,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:53:08,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:53:08,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:53:08,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:53:08,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:53:08,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:53:08,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:53:08,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:53:08,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:53:08,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:53:08,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:53:08,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:53:08,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:53:08,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:53:08,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:53:08,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:53:08,209 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:53:08,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:53:08,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:53:08,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:53:08,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:53:08,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:53:08,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:53:08,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:53:08,213 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:53:08,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:53:08,213 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:53:08,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:53:08,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:53:08,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:53:08,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:53:08,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:53:08,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:53:08,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:53:08,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:53:08,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:53:08,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:53:08,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:53:08,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:53:08,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c49ca63b076bdfdfd4da2b39429bac3c0da8332d [2019-11-15 21:53:08,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:53:08,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:53:08,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:53:08,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:53:08,257 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:53:08,258 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2019-11-15 21:53:08,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/data/806f4a708/a9d55a75655643ab8ce0e54b8255d4d0/FLAG4b8be8d76 [2019-11-15 21:53:08,638 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:53:08,639 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig3.c [2019-11-15 21:53:08,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/data/806f4a708/a9d55a75655643ab8ce0e54b8255d4d0/FLAG4b8be8d76 [2019-11-15 21:53:09,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/data/806f4a708/a9d55a75655643ab8ce0e54b8255d4d0 [2019-11-15 21:53:09,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:53:09,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:53:09,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:53:09,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:53:09,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:53:09,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d510e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09, skipping insertion in model container [2019-11-15 21:53:09,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:53:09,082 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:53:09,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:53:09,264 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:53:09,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:53:09,371 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:53:09,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09 WrapperNode [2019-11-15 21:53:09,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:53:09,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:53:09,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:53:09,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:53:09,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:53:09,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:53:09,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:53:09,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:53:09,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... [2019-11-15 21:53:09,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:53:09,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:53:09,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:53:09,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:53:09,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:53:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:53:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:53:09,676 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:53:09,677 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:53:09,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:53:09 BoogieIcfgContainer [2019-11-15 21:53:09,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:53:09,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:53:09,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:53:09,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:53:09,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:53:09" (1/3) ... [2019-11-15 21:53:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c416386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:53:09, skipping insertion in model container [2019-11-15 21:53:09,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:53:09" (2/3) ... [2019-11-15 21:53:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c416386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:53:09, skipping insertion in model container [2019-11-15 21:53:09,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:53:09" (3/3) ... [2019-11-15 21:53:09,684 INFO L109 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig3.c [2019-11-15 21:53:09,692 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:53:09,698 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 21:53:09,708 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 21:53:09,725 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:53:09,725 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:53:09,725 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:53:09,725 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:53:09,729 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:53:09,729 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:53:09,730 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:53:09,730 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:53:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-15 21:53:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:53:09,747 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:53:09,747 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:53:09,749 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:53:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:53:09,753 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-15 21:53:09,760 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:53:09,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247026759] [2019-11-15 21:53:09,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:09,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:09,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:53:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:53:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:53:09,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247026759] [2019-11-15 21:53:09,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:53:09,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:53:09,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261896460] [2019-11-15 21:53:09,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:53:09,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:53:09,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:53:09,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:53:09,952 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-11-15 21:53:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:53:10,125 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-15 21:53:10,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:53:10,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-15 21:53:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:53:10,136 INFO L225 Difference]: With dead ends: 46 [2019-11-15 21:53:10,136 INFO L226 Difference]: Without dead ends: 29 [2019-11-15 21:53:10,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:53:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-15 21:53:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2019-11-15 21:53:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 21:53:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-11-15 21:53:10,171 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 4 [2019-11-15 21:53:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:53:10,172 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-11-15 21:53:10,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:53:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-15 21:53:10,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:53:10,172 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:53:10,173 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:53:10,173 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:53:10,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:53:10,173 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-15 21:53:10,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:53:10,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633698091] [2019-11-15 21:53:10,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:53:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:53:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:53:10,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633698091] [2019-11-15 21:53:10,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:53:10,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:53:10,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568011009] [2019-11-15 21:53:10,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:53:10,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:53:10,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:53:10,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:53:10,225 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2019-11-15 21:53:10,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:53:10,294 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-11-15 21:53:10,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:53:10,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-15 21:53:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:53:10,295 INFO L225 Difference]: With dead ends: 31 [2019-11-15 21:53:10,295 INFO L226 Difference]: Without dead ends: 30 [2019-11-15 21:53:10,296 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:53:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-15 21:53:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2019-11-15 21:53:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 21:53:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-15 21:53:10,300 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 4 [2019-11-15 21:53:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:53:10,301 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-15 21:53:10,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:53:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-15 21:53:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:53:10,301 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:53:10,301 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:53:10,302 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:53:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:53:10,302 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-15 21:53:10,302 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:53:10,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319292058] [2019-11-15 21:53:10,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,303 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:53:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:53:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:53:10,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319292058] [2019-11-15 21:53:10,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:53:10,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:53:10,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519013288] [2019-11-15 21:53:10,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:53:10,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:53:10,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:53:10,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:53:10,323 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2019-11-15 21:53:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:53:10,332 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-11-15 21:53:10,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:53:10,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:53:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:53:10,334 INFO L225 Difference]: With dead ends: 22 [2019-11-15 21:53:10,334 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 21:53:10,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:53:10,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 21:53:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 21:53:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 21:53:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-15 21:53:10,339 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2019-11-15 21:53:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:53:10,339 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-15 21:53:10,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:53:10,339 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-15 21:53:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:53:10,340 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:53:10,340 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:53:10,340 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:53:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:53:10,341 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-15 21:53:10,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:53:10,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134064997] [2019-11-15 21:53:10,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:53:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:53:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:53:10,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134064997] [2019-11-15 21:53:10,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:53:10,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:53:10,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224661438] [2019-11-15 21:53:10,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:53:10,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:53:10,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:53:10,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:53:10,385 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-15 21:53:10,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:53:10,404 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-15 21:53:10,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:53:10,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:53:10,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:53:10,405 INFO L225 Difference]: With dead ends: 21 [2019-11-15 21:53:10,405 INFO L226 Difference]: Without dead ends: 19 [2019-11-15 21:53:10,406 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:53:10,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-15 21:53:10,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-15 21:53:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-15 21:53:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-15 21:53:10,409 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2019-11-15 21:53:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:53:10,409 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-15 21:53:10,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:53:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-15 21:53:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 21:53:10,410 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:53:10,410 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:53:10,410 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:53:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:53:10,411 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2019-11-15 21:53:10,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:53:10,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844844774] [2019-11-15 21:53:10,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:53:10,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:53:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:53:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:53:10,451 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:53:10,451 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:53:10,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:53:10 BoogieIcfgContainer [2019-11-15 21:53:10,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:53:10,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:53:10,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:53:10,467 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:53:10,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:53:09" (3/4) ... [2019-11-15 21:53:10,470 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 21:53:10,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1091ff25-901c-4628-baf9-b47168a28a0c/bin/uautomizer/witness.graphml [2019-11-15 21:53:10,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:53:10,516 INFO L168 Benchmark]: Toolchain (without parser) took 1465.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -90.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:53:10,516 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:53:10,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:53:10,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:53:10,522 INFO L168 Benchmark]: Boogie Preprocessor took 17.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:53:10,524 INFO L168 Benchmark]: RCFGBuilder took 260.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:53:10,524 INFO L168 Benchmark]: TraceAbstraction took 787.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:53:10,525 INFO L168 Benchmark]: Witness Printer took 46.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:53:10,531 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 260.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 787.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 71 SDslu, 42 SDs, 0 SdLazy, 48 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=2, 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, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...