./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.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_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/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 0322173b3e50156a3157d6284ff4dd2480f2ac8d ............................................................................................................................................................................................................................................................................................................................................................ 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 23:44:22,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:44:22,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:44:22,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:44:22,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:44:22,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:44:22,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:44:22,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:44:22,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:44:22,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:44:22,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:44:22,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:44:22,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:44:22,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:44:22,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:44:22,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:44:22,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:44:22,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:44:22,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:44:22,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:44:22,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:44:22,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:44:22,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:44:22,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:44:22,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:44:22,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:44:22,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:44:22,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:44:22,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:44:22,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:44:22,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:44:22,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:44:22,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:44:22,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:44:22,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:44:22,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:44:22,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:44:22,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:44:22,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:44:22,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:44:22,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:44:22,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:44:22,821 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:44:22,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:44:22,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:44:22,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:44:22,832 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:44:22,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:44:22,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:44:22,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:44:22,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:44:22,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:44:22,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:44:22,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:44:22,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:44:22,834 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:44:22,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:44:22,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:44:22,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:44:22,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:44:22,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:44:22,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:44:22,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:44:22,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:44:22,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:44:22,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:44:22,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:44:22,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:44:22,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:44:22,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:44:22,839 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_7d385046-f5ce-435d-959a-ca21b42efa16/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 -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2019-11-19 23:44:23,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:44:23,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:44:23,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:44:23,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:44:23,032 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:44:23,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-11-19 23:44:23,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/data/ff6659114/a9a66c4b9c7e41c681bd5a117b3c9508/FLAGc1b14f359 [2019-11-19 23:44:23,486 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:44:23,487 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2019-11-19 23:44:23,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/data/ff6659114/a9a66c4b9c7e41c681bd5a117b3c9508/FLAGc1b14f359 [2019-11-19 23:44:23,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/data/ff6659114/a9a66c4b9c7e41c681bd5a117b3c9508 [2019-11-19 23:44:23,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:44:23,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:44:23,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:44:23,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:44:23,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:44:23,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47429033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23, skipping insertion in model container [2019-11-19 23:44:23,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:44:23,534 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:44:23,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:44:23,786 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:44:23,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:44:23,814 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:44:23,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23 WrapperNode [2019-11-19 23:44:23,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:44:23,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:44:23,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:44:23,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:44:23,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:44:23,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:44:23,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:44:23,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:44:23,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... [2019-11-19 23:44:23,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:44:23,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:44:23,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:44:23,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:44:23,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/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 23:44:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:44:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:44:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:44:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:44:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:44:24,119 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:44:24,119 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 23:44:24,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:44:24 BoogieIcfgContainer [2019-11-19 23:44:24,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:44:24,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:44:24,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:44:24,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:44:24,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:44:23" (1/3) ... [2019-11-19 23:44:24,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65000baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:44:24, skipping insertion in model container [2019-11-19 23:44:24,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:44:23" (2/3) ... [2019-11-19 23:44:24,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65000baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:44:24, skipping insertion in model container [2019-11-19 23:44:24,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:44:24" (3/3) ... [2019-11-19 23:44:24,128 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2019-11-19 23:44:24,136 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:44:24,140 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:44:24,148 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:44:24,168 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:44:24,168 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:44:24,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:44:24,169 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:44:24,169 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:44:24,169 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:44:24,169 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:44:24,170 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:44:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-19 23:44:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:44:24,185 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:44:24,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:44:24,186 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:44:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:44:24,190 INFO L82 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2019-11-19 23:44:24,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:44:24,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892729555] [2019-11-19 23:44:24,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:44:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:44:24,377 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 23:44:24,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892729555] [2019-11-19 23:44:24,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:44:24,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:44:24,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403750774] [2019-11-19 23:44:24,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:44:24,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:44:24,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:44:24,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:44:24,398 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2019-11-19 23:44:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:44:24,493 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-19 23:44:24,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:44:24,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 23:44:24,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:44:24,502 INFO L225 Difference]: With dead ends: 33 [2019-11-19 23:44:24,502 INFO L226 Difference]: Without dead ends: 12 [2019-11-19 23:44:24,507 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 23:44:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-19 23:44:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-19 23:44:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 23:44:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-19 23:44:24,531 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-11-19 23:44:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:44:24,531 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-19 23:44:24,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:44:24,531 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-19 23:44:24,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 23:44:24,532 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:44:24,532 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:44:24,532 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:44:24,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:44:24,533 INFO L82 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2019-11-19 23:44:24,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:44:24,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861294315] [2019-11-19 23:44:24,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:44:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:44:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:44:24,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861294315] [2019-11-19 23:44:24,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980155062] [2019-11-19 23:44:24,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:44:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:44:24,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-19 23:44:24,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:44:24,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:44:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:44:24,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:44:24,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2019-11-19 23:44:24,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350411278] [2019-11-19 23:44:24,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 23:44:24,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:44:24,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:44:24,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:44:24,821 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 7 states. [2019-11-19 23:44:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:44:24,885 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-19 23:44:24,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:44:24,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-19 23:44:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:44:24,886 INFO L225 Difference]: With dead ends: 19 [2019-11-19 23:44:24,886 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 23:44:24,887 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:44:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 23:44:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-11-19 23:44:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 23:44:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-11-19 23:44:24,891 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2019-11-19 23:44:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:44:24,891 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-11-19 23:44:24,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 23:44:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-11-19 23:44:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 23:44:24,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:44:24,892 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2019-11-19 23:44:25,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:44:25,094 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:44:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:44:25,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1625670603, now seen corresponding path program 2 times [2019-11-19 23:44:25,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:44:25,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077513607] [2019-11-19 23:44:25,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:44:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:44:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:44:25,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077513607] [2019-11-19 23:44:25,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:44:25,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:44:25,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360943639] [2019-11-19 23:44:25,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:44:25,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:44:25,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:44:25,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:44:25,202 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2019-11-19 23:44:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:44:25,218 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-11-19 23:44:25,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:44:25,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-19 23:44:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:44:25,219 INFO L225 Difference]: With dead ends: 17 [2019-11-19 23:44:25,219 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:44:25,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:44:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:44:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:44:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:44:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:44:25,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-19 23:44:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:44:25,221 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:44:25,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:44:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:44:25,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:44:25,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:44:25,371 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-19 23:44:25,372 INFO L440 ceAbstractionStarter]: At program point L24(lines 14 25) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (and (<= (+ ULTIMATE.start_glob2_~p~0.offset 4) ~tmp~0.offset) (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base))) [2019-11-19 23:44:25,372 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-11-19 23:44:25,373 INFO L440 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (let ((.cse0 (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base))) (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_glob2_~p~0.offset ~tmp~0.offset) .cse0 (<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~0.offset)) (and (<= (+ ULTIMATE.start_glob2_~pathlim.offset 4) ULTIMATE.start_glob2_~p~0.offset) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (let ((.cse1 (+ ULTIMATE.start_glob2_~p~0.offset 4))) (and (<= .cse1 ~tmp~0.offset) (<= ULTIMATE.start_glob2_~pathlim.offset .cse1) .cse0)))) [2019-11-19 23:44:25,373 INFO L444 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2019-11-19 23:44:25,373 INFO L440 ceAbstractionStarter]: At program point L37(lines 27 38) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (and (<= (+ ULTIMATE.start_glob2_~p~0.offset 4) ~tmp~0.offset) (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base))) [2019-11-19 23:44:25,373 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-19 23:44:25,373 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (or (let ((.cse0 (+ ULTIMATE.start_glob2_~p~0.offset 4))) (and (<= .cse0 ~tmp~0.offset) (<= ULTIMATE.start_glob2_~pathlim.offset .cse0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ~tmp~0.base ULTIMATE.start_glob2_~p~0.base))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~0.offset))) [2019-11-19 23:44:25,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:44:25 BoogieIcfgContainer [2019-11-19 23:44:25,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:44:25,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:44:25,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:44:25,402 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:44:25,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:44:24" (3/4) ... [2019-11-19 23:44:25,407 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:44:25,415 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-19 23:44:25,416 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-19 23:44:25,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:44:25,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d385046-f5ce-435d-959a-ca21b42efa16/bin/uautomizer/witness.graphml [2019-11-19 23:44:25,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:44:25,455 INFO L168 Benchmark]: Toolchain (without parser) took 1948.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -76.4 MB). Peak memory consumption was 59.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:44:25,455 INFO L168 Benchmark]: CDTParser took 0.15 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 23:44:25,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:44:25,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:44:25,457 INFO L168 Benchmark]: Boogie Preprocessor took 21.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:44:25,469 INFO L168 Benchmark]: RCFGBuilder took 252.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:44:25,472 INFO L168 Benchmark]: TraceAbstraction took 1279.97 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: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:44:25,472 INFO L168 Benchmark]: Witness Printer took 51.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:44:25,475 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 308.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.05 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 252.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1279.97 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: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. * Witness Printer took 51.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((1 == cond && p <= tmp) && tmp == p) && pathlim <= p) || (pathlim + 4 <= p && !(0 == cond))) || ((p + 4 <= tmp && pathlim <= p + 4) && tmp == p) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: !(0 == cond) || (p + 4 <= tmp && tmp == p) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((p + 4 <= tmp && pathlim <= p + 4) && 1 == cond) && tmp == p) || (!(0 == cond) && pathlim <= p) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(0 == cond) || (p + 4 <= tmp && tmp == p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 22 SDtfs, 34 SDslu, 27 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 92 HoareAnnotationTreeSize, 4 FomulaSimplifications, 71 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1340 SizeOfPredicates, 14 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 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...