./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ff697c57265298ce2261966fa58c440777fc865 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-02 17:42:38,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:42:38,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:42:38,552 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:42:38,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:42:38,552 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:42:38,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:42:38,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:42:38,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:42:38,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:42:38,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:42:38,557 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:42:38,558 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:42:38,559 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:42:38,560 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:42:38,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:42:38,561 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:42:38,562 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:42:38,564 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:42:38,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:42:38,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:42:38,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:42:38,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:42:38,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:42:38,568 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:42:38,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:42:38,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:42:38,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:42:38,571 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:42:38,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:42:38,571 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:42:38,572 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:42:38,572 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:42:38,572 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:42:38,573 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:42:38,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:42:38,573 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-02 17:42:38,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:42:38,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:42:38,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:42:38,584 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:42:38,584 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:42:38,584 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:42:38,584 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:42:38,585 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:42:38,585 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:42:38,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 17:42:38,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:42:38,587 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:42:38,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 17:42:38,588 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan 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 -> Taipan 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 -> 6ff697c57265298ce2261966fa58c440777fc865 [2018-12-02 17:42:38,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:42:38,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:42:38,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:42:38,627 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:42:38,628 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:42:38,628 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-02 17:42:38,670 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/data/f279da07a/cbf2b8b39f1647dd9cbeb503cdd85e5c/FLAG8ff8c747e [2018-12-02 17:42:39,072 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:42:39,072 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-02 17:42:39,075 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/data/f279da07a/cbf2b8b39f1647dd9cbeb503cdd85e5c/FLAG8ff8c747e [2018-12-02 17:42:39,083 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/data/f279da07a/cbf2b8b39f1647dd9cbeb503cdd85e5c [2018-12-02 17:42:39,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:42:39,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:42:39,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:42:39,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:42:39,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:42:39,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489644d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39, skipping insertion in model container [2018-12-02 17:42:39,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:42:39,104 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:42:39,187 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:42:39,189 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:42:39,200 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:42:39,207 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:42:39,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39 WrapperNode [2018-12-02 17:42:39,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:42:39,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:42:39,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:42:39,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:42:39,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:42:39,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:42:39,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:42:39,220 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:42:39,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... [2018-12-02 17:42:39,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:42:39,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:42:39,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:42:39,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:42:39,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/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 [2018-12-02 17:42:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 17:42:39,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 17:42:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-02 17:42:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-02 17:42:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:42:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:42:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 17:42:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 17:42:39,427 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:42:39,427 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 17:42:39,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:42:39 BoogieIcfgContainer [2018-12-02 17:42:39,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:42:39,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:42:39,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:42:39,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:42:39,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:42:39" (1/3) ... [2018-12-02 17:42:39,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d43dffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:42:39, skipping insertion in model container [2018-12-02 17:42:39,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:39" (2/3) ... [2018-12-02 17:42:39,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d43dffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:42:39, skipping insertion in model container [2018-12-02 17:42:39,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:42:39" (3/3) ... [2018-12-02 17:42:39,432 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2_false-no-overflow.c [2018-12-02 17:42:39,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:42:39,442 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-02 17:42:39,450 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-02 17:42:39,468 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:42:39,468 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 17:42:39,468 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:42:39,468 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:42:39,468 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:42:39,468 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:42:39,468 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:42:39,469 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:42:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-12-02 17:42:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 17:42:39,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,484 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,485 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1872952966, now seen corresponding path program 1 times [2018-12-02 17:42:39,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,518 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:42:39,565 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:42:39,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:42:39,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:42:39,577 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-12-02 17:42:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,613 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2018-12-02 17:42:39,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:42:39,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-02 17:42:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,620 INFO L225 Difference]: With dead ends: 58 [2018-12-02 17:42:39,620 INFO L226 Difference]: Without dead ends: 46 [2018-12-02 17:42:39,622 INFO L631 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 [2018-12-02 17:42:39,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-02 17:42:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-02 17:42:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-02 17:42:39,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2018-12-02 17:42:39,646 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 7 [2018-12-02 17:42:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,647 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2018-12-02 17:42:39,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:42:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2018-12-02 17:42:39,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 17:42:39,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,648 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2068000115, now seen corresponding path program 1 times [2018-12-02 17:42:39,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,649 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:42:39,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:42:39,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:42:39,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:42:39,661 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand 3 states. [2018-12-02 17:42:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,689 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-12-02 17:42:39,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:42:39,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-02 17:42:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,691 INFO L225 Difference]: With dead ends: 72 [2018-12-02 17:42:39,691 INFO L226 Difference]: Without dead ends: 70 [2018-12-02 17:42:39,691 INFO L631 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 [2018-12-02 17:42:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-02 17:42:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2018-12-02 17:42:39,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-02 17:42:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-12-02 17:42:39,698 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 8 [2018-12-02 17:42:39,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,698 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-12-02 17:42:39,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:42:39,698 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-12-02 17:42:39,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 17:42:39,699 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,699 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,700 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1576559192, now seen corresponding path program 1 times [2018-12-02 17:42:39,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,701 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:42:39,728 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:42:39,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:42:39,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:42:39,729 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 3 states. [2018-12-02 17:42:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,757 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions. [2018-12-02 17:42:39,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:42:39,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-02 17:42:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,758 INFO L225 Difference]: With dead ends: 69 [2018-12-02 17:42:39,758 INFO L226 Difference]: Without dead ends: 68 [2018-12-02 17:42:39,759 INFO L631 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 [2018-12-02 17:42:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-02 17:42:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-12-02 17:42:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-02 17:42:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2018-12-02 17:42:39,764 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 18 [2018-12-02 17:42:39,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,764 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2018-12-02 17:42:39,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:42:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2018-12-02 17:42:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 17:42:39,765 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,765 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,766 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1628694841, now seen corresponding path program 1 times [2018-12-02 17:42:39,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,767 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 17:42:39,788 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:42:39,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:42:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:42:39,788 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand 4 states. [2018-12-02 17:42:39,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,812 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2018-12-02 17:42:39,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:42:39,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-12-02 17:42:39,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,813 INFO L225 Difference]: With dead ends: 67 [2018-12-02 17:42:39,814 INFO L226 Difference]: Without dead ends: 66 [2018-12-02 17:42:39,814 INFO L631 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 [2018-12-02 17:42:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-02 17:42:39,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-02 17:42:39,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-02 17:42:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2018-12-02 17:42:39,819 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 19 [2018-12-02 17:42:39,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,819 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2018-12-02 17:42:39,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:42:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2018-12-02 17:42:39,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 17:42:39,820 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,820 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,820 INFO L82 PathProgramCache]: Analyzing trace with hash 975768462, now seen corresponding path program 1 times [2018-12-02 17:42:39,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,821 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 17:42:39,845 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:42:39,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:42:39,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:42:39,846 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand 4 states. [2018-12-02 17:42:39,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,871 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2018-12-02 17:42:39,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:42:39,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-12-02 17:42:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,871 INFO L225 Difference]: With dead ends: 74 [2018-12-02 17:42:39,872 INFO L226 Difference]: Without dead ends: 73 [2018-12-02 17:42:39,872 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:42:39,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-02 17:42:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2018-12-02 17:42:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-02 17:42:39,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2018-12-02 17:42:39,877 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 20 [2018-12-02 17:42:39,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,877 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2018-12-02 17:42:39,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:42:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2018-12-02 17:42:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 17:42:39,878 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,878 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,878 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,878 INFO L82 PathProgramCache]: Analyzing trace with hash 975774644, now seen corresponding path program 1 times [2018-12-02 17:42:39,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:42:39,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 17:42:39,900 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:39,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:42:39,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:42:39,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:42:39,901 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand 4 states. [2018-12-02 17:42:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:39,924 INFO L93 Difference]: Finished difference Result 69 states and 94 transitions. [2018-12-02 17:42:39,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:42:39,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-12-02 17:42:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:39,925 INFO L225 Difference]: With dead ends: 69 [2018-12-02 17:42:39,925 INFO L226 Difference]: Without dead ends: 68 [2018-12-02 17:42:39,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:42:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-02 17:42:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-12-02 17:42:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-02 17:42:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2018-12-02 17:42:39,930 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 20 [2018-12-02 17:42:39,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:39,930 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2018-12-02 17:42:39,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:42:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2018-12-02 17:42:39,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 17:42:39,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:39,931 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:39,931 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:39,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1807650971, now seen corresponding path program 1 times [2018-12-02 17:42:39,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:39,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:39,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:39,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:39,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:42:39,954 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:42:39,955 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-12-02 17:42:39,956 INFO L205 CegarAbsIntRunner]: [0], [46], [55], [57], [64], [66], [73], [75], [82], [84], [91], [93], [102], [111], [112], [113], [115], [121], [122], [123] [2018-12-02 17:42:39,978 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 17:42:39,978 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 17:42:40,047 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 17:42:40,048 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Performed 54 root evaluator evaluations with a maximum evaluation depth of 3. Performed 54 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 9 variables. [2018-12-02 17:42:40,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:40,054 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 17:42:40,054 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:42:40,054 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:42:40,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:40,060 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 17:42:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:42:40,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:42:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:40,097 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:42:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:42:40,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 17:42:40,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2018-12-02 17:42:40,132 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:42:40,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:42:40,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:42:40,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-02 17:42:40,133 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand 4 states. [2018-12-02 17:42:40,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:42:40,162 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2018-12-02 17:42:40,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:42:40,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-12-02 17:42:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:42:40,163 INFO L225 Difference]: With dead ends: 72 [2018-12-02 17:42:40,163 INFO L226 Difference]: Without dead ends: 65 [2018-12-02 17:42:40,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-02 17:42:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-02 17:42:40,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-12-02 17:42:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-02 17:42:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2018-12-02 17:42:40,168 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 21 [2018-12-02 17:42:40,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:42:40,169 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2018-12-02 17:42:40,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:42:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2018-12-02 17:42:40,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 17:42:40,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:42:40,170 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:42:40,170 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 17:42:40,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:42:40,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1410625968, now seen corresponding path program 1 times [2018-12-02 17:42:40,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:42:40,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:40,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:42:40,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:42:40,172 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:42:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 17:42:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 17:42:40,193 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 17:42:40,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:42:40 BoogieIcfgContainer [2018-12-02 17:42:40,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:42:40,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:42:40,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:42:40,213 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:42:40,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:42:39" (3/4) ... [2018-12-02 17:42:40,215 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 17:42:40,240 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0957a80d-9f0a-4d40-adb5-e2910b0755a8/bin-2019/utaipan/witness.graphml [2018-12-02 17:42:40,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:42:40,241 INFO L168 Benchmark]: Toolchain (without parser) took 1155.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.0 MB in the beginning and 994.7 MB in the end (delta: -38.7 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,242 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:42:40,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.72 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,243 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:42:40,243 INFO L168 Benchmark]: Boogie Preprocessor took 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,243 INFO L168 Benchmark]: RCFGBuilder took 194.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,244 INFO L168 Benchmark]: TraceAbstraction took 783.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,244 INFO L168 Benchmark]: Witness Printer took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-02 17:42:40,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.72 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 783.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. * Witness Printer took 27.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 VAL [d=0, x=2147483647] [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 VAL [d=-1, x=2147483647] [L80] COND TRUE x > 0 VAL [d=-1, x=2147483647] [L81] x - d VAL [d=-1, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 6 error locations. UNSAFE Result, 0.7s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 400 SDtfs, 178 SDslu, 404 SDs, 0 SdLazy, 131 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 10424 SizeOfPredicates, 1 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...