./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/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 9f16087843ad8a83da47d6a6a4e9d674fa79150d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 10:07:54,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:54,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:54,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:54,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:54,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:54,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:54,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:54,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:54,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:54,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:54,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:54,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:54,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:54,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:54,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:54,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:54,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:54,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:54,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:54,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:54,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:54,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:54,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:54,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:54,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:54,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:54,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:54,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:54,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:54,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:54,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:54,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:54,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:54,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:54,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:54,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:54,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:54,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:54,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:54,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:54,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 10:07:54,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:54,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:54,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:54,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:54,619 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:54,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:54,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:07:54,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:54,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:54,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:54,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:54,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:54,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:54,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:54,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:54,622 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_3c12ff45-485d-4880-b07a-6dbd3119eec9/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 -> 9f16087843ad8a83da47d6a6a4e9d674fa79150d [2019-12-07 10:07:54,723 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:54,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:54,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:54,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:54,738 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:54,738 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-12-07 10:07:54,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/data/98b7b601a/4ee487f30dea4d66be6917a0e40e4bc1/FLAGacf2b227b [2019-12-07 10:07:55,095 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:55,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-12-07 10:07:55,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/data/98b7b601a/4ee487f30dea4d66be6917a0e40e4bc1/FLAGacf2b227b [2019-12-07 10:07:55,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/data/98b7b601a/4ee487f30dea4d66be6917a0e40e4bc1 [2019-12-07 10:07:55,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:55,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:55,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:55,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:55,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:55,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c08417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55, skipping insertion in model container [2019-12-07 10:07:55,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:55,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:55,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:55,246 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:55,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:55,300 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:55,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55 WrapperNode [2019-12-07 10:07:55,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:55,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:55,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:55,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:55,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:55,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:55,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:55,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:55,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... [2019-12-07 10:07:55,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:55,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:55,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:55,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:55,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/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 [2019-12-07 10:07:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:55,498 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:55,498 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:07:55,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:55 BoogieIcfgContainer [2019-12-07 10:07:55,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:55,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:55,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:55,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:55,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:55" (1/3) ... [2019-12-07 10:07:55,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e214bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:55, skipping insertion in model container [2019-12-07 10:07:55,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:55" (2/3) ... [2019-12-07 10:07:55,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e214bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:55, skipping insertion in model container [2019-12-07 10:07:55,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:55" (3/3) ... [2019-12-07 10:07:55,504 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-complex.c [2019-12-07 10:07:55,510 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:55,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-12-07 10:07:55,522 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-12-07 10:07:55,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:55,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:55,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:55,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:55,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:55,537 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:55,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:55,537 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 10:07:55,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:07:55,552 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,552 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:07:55,553 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,557 INFO L82 PathProgramCache]: Analyzing trace with hash 964492, now seen corresponding path program 1 times [2019-12-07 10:07:55,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228758710] [2019-12-07 10:07:55,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228758710] [2019-12-07 10:07:55,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:55,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137488841] [2019-12-07 10:07:55,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:07:55,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:07:55,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:07:55,652 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-12-07 10:07:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:55,665 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2019-12-07 10:07:55,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:07:55,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-07 10:07:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:55,672 INFO L225 Difference]: With dead ends: 65 [2019-12-07 10:07:55,672 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 10:07:55,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:07:55,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 10:07:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 10:07:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 10:07:55,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-12-07 10:07:55,697 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 4 [2019-12-07 10:07:55,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:55,697 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-12-07 10:07:55,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:07:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-12-07 10:07:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:07:55,697 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:07:55,698 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash 963500, now seen corresponding path program 1 times [2019-12-07 10:07:55,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794337612] [2019-12-07 10:07:55,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794337612] [2019-12-07 10:07:55,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:55,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516318471] [2019-12-07 10:07:55,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:55,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:55,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,722 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 3 states. [2019-12-07 10:07:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:55,762 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2019-12-07 10:07:55,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:55,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 10:07:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:55,764 INFO L225 Difference]: With dead ends: 49 [2019-12-07 10:07:55,764 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 10:07:55,764 INFO L630 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 [2019-12-07 10:07:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 10:07:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2019-12-07 10:07:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 10:07:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-12-07 10:07:55,770 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 4 [2019-12-07 10:07:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:55,770 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-12-07 10:07:55,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:55,770 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-12-07 10:07:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:07:55,771 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,771 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:07:55,771 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash 29868584, now seen corresponding path program 1 times [2019-12-07 10:07:55,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174461671] [2019-12-07 10:07:55,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174461671] [2019-12-07 10:07:55,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:07:55,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018129297] [2019-12-07 10:07:55,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:55,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:55,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,789 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 3 states. [2019-12-07 10:07:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:55,812 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-12-07 10:07:55,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:55,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 10:07:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:55,813 INFO L225 Difference]: With dead ends: 39 [2019-12-07 10:07:55,813 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 10:07:55,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 10:07:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 10:07:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 10:07:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2019-12-07 10:07:55,819 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 5 [2019-12-07 10:07:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:55,820 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2019-12-07 10:07:55,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:55,820 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2019-12-07 10:07:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 10:07:55,820 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 10:07:55,821 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,821 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2019-12-07 10:07:55,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099281964] [2019-12-07 10:07:55,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099281964] [2019-12-07 10:07:55,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:55,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071870942] [2019-12-07 10:07:55,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:55,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:55,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:55,842 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand 4 states. [2019-12-07 10:07:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:55,924 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2019-12-07 10:07:55,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:07:55,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 10:07:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:55,926 INFO L225 Difference]: With dead ends: 55 [2019-12-07 10:07:55,926 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 10:07:55,926 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 10:07:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2019-12-07 10:07:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 10:07:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2019-12-07 10:07:55,932 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 5 [2019-12-07 10:07:55,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:55,932 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2019-12-07 10:07:55,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2019-12-07 10:07:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 10:07:55,932 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,932 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:07:55,933 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,933 INFO L82 PathProgramCache]: Analyzing trace with hash 925926190, now seen corresponding path program 1 times [2019-12-07 10:07:55,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455669514] [2019-12-07 10:07:55,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455669514] [2019-12-07 10:07:55,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:07:55,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36044347] [2019-12-07 10:07:55,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:55,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:55,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,949 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2019-12-07 10:07:55,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:55,970 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2019-12-07 10:07:55,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:55,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 10:07:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:55,971 INFO L225 Difference]: With dead ends: 53 [2019-12-07 10:07:55,971 INFO L226 Difference]: Without dead ends: 52 [2019-12-07 10:07:55,972 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-07 10:07:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2019-12-07 10:07:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 10:07:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2019-12-07 10:07:55,976 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 6 [2019-12-07 10:07:55,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:55,976 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2019-12-07 10:07:55,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2019-12-07 10:07:55,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 10:07:55,976 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:55,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:07:55,977 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:55,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:55,977 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2019-12-07 10:07:55,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:55,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963182773] [2019-12-07 10:07:55,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:55,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:55,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963182773] [2019-12-07 10:07:55,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:55,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:55,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975218508] [2019-12-07 10:07:55,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:55,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:55,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:55,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:55,990 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 3 states. [2019-12-07 10:07:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:56,014 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2019-12-07 10:07:56,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:56,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 10:07:56,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:56,015 INFO L225 Difference]: With dead ends: 103 [2019-12-07 10:07:56,015 INFO L226 Difference]: Without dead ends: 60 [2019-12-07 10:07:56,015 INFO L630 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 [2019-12-07 10:07:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-12-07 10:07:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2019-12-07 10:07:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 10:07:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2019-12-07 10:07:56,020 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 6 [2019-12-07 10:07:56,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:56,021 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2019-12-07 10:07:56,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2019-12-07 10:07:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 10:07:56,021 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:56,021 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 10:07:56,021 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:56,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:56,021 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2019-12-07 10:07:56,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:56,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311829903] [2019-12-07 10:07:56,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:56,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311829903] [2019-12-07 10:07:56,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:56,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:07:56,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095976522] [2019-12-07 10:07:56,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:56,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:56,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:56,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:56,035 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand 3 states. [2019-12-07 10:07:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:56,053 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2019-12-07 10:07:56,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:56,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 10:07:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:56,054 INFO L225 Difference]: With dead ends: 58 [2019-12-07 10:07:56,054 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 10:07:56,055 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 10:07:56,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 10:07:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 10:07:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2019-12-07 10:07:56,061 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2019-12-07 10:07:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:56,061 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2019-12-07 10:07:56,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2019-12-07 10:07:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 10:07:56,062 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:56,062 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:56,062 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 10:07:56,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:56,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1361059094, now seen corresponding path program 1 times [2019-12-07 10:07:56,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:56,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888191164] [2019-12-07 10:07:56,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:56,086 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:56,086 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:56,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:56 BoogieIcfgContainer [2019-12-07 10:07:56,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:56,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:56,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:56,097 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:56,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:55" (3/4) ... [2019-12-07 10:07:56,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:07:56,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c12ff45-485d-4880-b07a-6dbd3119eec9/bin/uautomizer/witness.graphml [2019-12-07 10:07:56,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:56,124 INFO L168 Benchmark]: Toolchain (without parser) took 1010.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 940.4 MB in the beginning and 1.0 GB in the end (delta: -60.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,124 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:56,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.19 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,125 INFO L168 Benchmark]: Boogie Preprocessor took 12.19 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,126 INFO L168 Benchmark]: RCFGBuilder took 163.45 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,126 INFO L168 Benchmark]: TraceAbstraction took 597.10 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: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,127 INFO L168 Benchmark]: Witness Printer took 25.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:56,129 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.19 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.19 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: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 163.45 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 597.10 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: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * Witness Printer took 25.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 30]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a, b; [L14] a = __VERIFIER_nondet_int() [L15] b = __VERIFIER_nondet_int() [L16] COND TRUE a < 30 [L17] COND FALSE !(b < a) [L29] EXPR a + 2 [L29] a = a + 2 [L30] b - 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 12 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 119 SDslu, 40 SDs, 0 SdLazy, 161 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, 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, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...