./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9633849a7b58c2c6c6845d63f4474af8185fd385 ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:12:33,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:12:33,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:12:33,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:12:33,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:12:33,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:12:33,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:12:33,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:12:33,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:12:33,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:12:33,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:12:33,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:12:33,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:12:33,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:12:33,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:12:33,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:12:33,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:12:33,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:12:33,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:12:33,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:12:33,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:12:33,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:12:33,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:12:33,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:12:33,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:12:33,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:12:33,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:12:33,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:12:33,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:12:33,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:12:33,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:12:33,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:12:33,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:12:33,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:12:33,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:12:33,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:12:33,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:12:33,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:12:33,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:12:33,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:12:33,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:12:33,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:12:33,819 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:12:33,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:12:33,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:12:33,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:12:33,833 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:12:33,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:12:33,834 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:12:33,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:12:33,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:12:33,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:12:33,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:12:33,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:12:33,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:12:33,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:12:33,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:12:33,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:12:33,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:12:33,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:12:33,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:12:33,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:12:33,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:12:33,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:12:33,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:12:33,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:12:33,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:12:33,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:12:33,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:12:33,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:12:33,840 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_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9633849a7b58c2c6c6845d63f4474af8185fd385 [2019-11-19 23:12:34,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:12:34,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:12:34,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:12:34,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:12:34,082 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:12:34,083 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/../../sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2019-11-19 23:12:34,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/data/457f480ba/2e7275e0fc7a4ed19ce9562d65cb20c3/FLAG5bf5f3a0e [2019-11-19 23:12:34,608 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:12:34,609 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2019-11-19 23:12:34,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/data/457f480ba/2e7275e0fc7a4ed19ce9562d65cb20c3/FLAG5bf5f3a0e [2019-11-19 23:12:34,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/data/457f480ba/2e7275e0fc7a4ed19ce9562d65cb20c3 [2019-11-19 23:12:34,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:12:34,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:12:34,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:12:34,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:12:34,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:12:34,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:12:34" (1/1) ... [2019-11-19 23:12:34,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7212ef93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:34, skipping insertion in model container [2019-11-19 23:12:34,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:12:34" (1/1) ... [2019-11-19 23:12:34,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:12:34,995 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:12:35,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:12:35,223 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:12:35,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:12:35,360 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:12:35,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35 WrapperNode [2019-11-19 23:12:35,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:12:35,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:12:35,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:12:35,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:12:35,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:12:35,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:12:35,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:12:35,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:12:35,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... [2019-11-19 23:12:35,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:12:35,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:12:35,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:12:35,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:12:35,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:12:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:12:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:12:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:12:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:12:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:12:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:12:35,885 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:12:35,885 INFO L285 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-19 23:12:35,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:12:35 BoogieIcfgContainer [2019-11-19 23:12:35,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:12:35,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:12:35,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:12:35,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:12:35,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:12:34" (1/3) ... [2019-11-19 23:12:35,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd39900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:12:35, skipping insertion in model container [2019-11-19 23:12:35,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:35" (2/3) ... [2019-11-19 23:12:35,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd39900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:12:35, skipping insertion in model container [2019-11-19 23:12:35,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:12:35" (3/3) ... [2019-11-19 23:12:35,908 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2019-11-19 23:12:35,927 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:12:35,938 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 23:12:35,957 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 23:12:36,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:12:36,024 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:12:36,024 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:12:36,024 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:12:36,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:12:36,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:12:36,025 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:12:36,025 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:12:36,042 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-19 23:12:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-19 23:12:36,049 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:12:36,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:12:36,051 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:12:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:12:36,057 INFO L82 PathProgramCache]: Analyzing trace with hash 212104336, now seen corresponding path program 1 times [2019-11-19 23:12:36,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:12:36,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388524039] [2019-11-19 23:12:36,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:12:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:12:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:12:36,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388524039] [2019-11-19 23:12:36,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:12:36,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:12:36,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897608788] [2019-11-19 23:12:36,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:12:36,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:12:36,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:12:36,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:12:36,395 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2019-11-19 23:12:36,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:12:36,539 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2019-11-19 23:12:36,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:12:36,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-19 23:12:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:12:36,552 INFO L225 Difference]: With dead ends: 68 [2019-11-19 23:12:36,553 INFO L226 Difference]: Without dead ends: 36 [2019-11-19 23:12:36,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:12:36,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-19 23:12:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 22. [2019-11-19 23:12:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-19 23:12:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-19 23:12:36,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 8 [2019-11-19 23:12:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:12:36,597 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-19 23:12:36,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:12:36,598 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-19 23:12:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 23:12:36,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:12:36,599 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:12:36,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:12:36,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:12:36,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1436002194, now seen corresponding path program 1 times [2019-11-19 23:12:36,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:12:36,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937347089] [2019-11-19 23:12:36,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:12:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:12:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 23:12:36,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937347089] [2019-11-19 23:12:36,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:12:36,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:12:36,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542360414] [2019-11-19 23:12:36,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:12:36,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:12:36,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:12:36,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:12:36,803 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-19 23:12:36,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:12:36,910 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2019-11-19 23:12:36,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:12:36,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-19 23:12:36,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:12:36,912 INFO L225 Difference]: With dead ends: 29 [2019-11-19 23:12:36,912 INFO L226 Difference]: Without dead ends: 27 [2019-11-19 23:12:36,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:12:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-19 23:12:36,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2019-11-19 23:12:36,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 23:12:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-11-19 23:12:36,918 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 10 [2019-11-19 23:12:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:12:36,918 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-19 23:12:36,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:12:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-19 23:12:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 23:12:36,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:12:36,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:12:36,920 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:12:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:12:36,920 INFO L82 PathProgramCache]: Analyzing trace with hash 906460810, now seen corresponding path program 1 times [2019-11-19 23:12:36,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:12:36,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88893781] [2019-11-19 23:12:36,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:12:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:12:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 23:12:37,060 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88893781] [2019-11-19 23:12:37,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:12:37,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:12:37,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616275732] [2019-11-19 23:12:37,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:12:37,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:12:37,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:12:37,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:12:37,062 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 4 states. [2019-11-19 23:12:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:12:37,158 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-19 23:12:37,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:12:37,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-19 23:12:37,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:12:37,159 INFO L225 Difference]: With dead ends: 27 [2019-11-19 23:12:37,160 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:12:37,160 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:12:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:12:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:12:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:12:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:12:37,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-19 23:12:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:12:37,162 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:12:37,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:12:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:12:37,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:12:37,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point L3-3(lines 1 36) no Hoare annotation was computed. [2019-11-19 23:12:37,187 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point L3-4(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point L3-5(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point L3-7(lines 1 36) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2019-11-19 23:12:37,188 INFO L447 ceAbstractionStarter]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2019-11-19 23:12:37,189 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-11-19 23:12:37,189 INFO L444 ceAbstractionStarter]: For program point L28-4(lines 28 34) no Hoare annotation was computed. [2019-11-19 23:12:37,189 INFO L444 ceAbstractionStarter]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2019-11-19 23:12:37,189 INFO L447 ceAbstractionStarter]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2019-11-19 23:12:37,189 INFO L444 ceAbstractionStarter]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2019-11-19 23:12:37,189 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:12:37,190 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2019-11-19 23:12:37,190 INFO L447 ceAbstractionStarter]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2019-11-19 23:12:37,190 INFO L444 ceAbstractionStarter]: For program point L21-4(lines 21 27) no Hoare annotation was computed. [2019-11-19 23:12:37,190 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2019-11-19 23:12:37,190 INFO L447 ceAbstractionStarter]: At program point L35(lines 10 36) the Hoare annotation is: true [2019-11-19 23:12:37,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:12:37 BoogieIcfgContainer [2019-11-19 23:12:37,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:12:37,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:12:37,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:12:37,200 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:12:37,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:12:35" (3/4) ... [2019-11-19 23:12:37,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:12:37,225 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-19 23:12:37,225 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 23:12:37,226 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:12:37,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b9236f0-bbc5-4177-b087-80cc943e54d2/bin/uautomizer/witness.graphml [2019-11-19 23:12:37,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:12:37,334 INFO L168 Benchmark]: Toolchain (without parser) took 2379.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -106.1 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:12:37,334 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:12:37,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -205.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:12:37,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:12:37,336 INFO L168 Benchmark]: Boogie Preprocessor took 72.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:12:37,337 INFO L168 Benchmark]: RCFGBuilder took 402.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:12:37,338 INFO L168 Benchmark]: TraceAbstraction took 1312.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:12:37,338 INFO L168 Benchmark]: Witness Printer took 131.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:12:37,346 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 404.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -205.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 402.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1312.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. * Witness Printer took 131.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 55 SDslu, 71 SDs, 0 SdLazy, 95 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, 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, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...