./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd7e6f07fd31ff4d383b67cf710ae9a054542003 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:34,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:34,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:34,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:34,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:34,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:34,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:34,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:34,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:34,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:34,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:34,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:34,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:34,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:34,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:34,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:34,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:34,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:34,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:34,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:34,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:34,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:34,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:34,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:34,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:34,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:34,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:34,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:34,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:34,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:34,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:34,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:34,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:34,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:34,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:34,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:34,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:34,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:34,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:34,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:34,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:34,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:15:34,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:34,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:34,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:34,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:34,729 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:34,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:34,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:34,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:34,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:34,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:34,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:34,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:34,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:34,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:34,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:34,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:34,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:34,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:34,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:34,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:34,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:34,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:34,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:34,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:34,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:34,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:34,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:34,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:34,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:34,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd7e6f07fd31ff4d383b67cf710ae9a054542003 [2020-11-28 03:15:35,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:35,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:35,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:35,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:35,077 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:35,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2020-11-28 03:15:35,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/data/02a075a65/5576ac09ee0444fcaf3eb7a67677a788/FLAGd028234af [2020-11-28 03:15:35,622 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:35,622 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound1.c [2020-11-28 03:15:35,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/data/02a075a65/5576ac09ee0444fcaf3eb7a67677a788/FLAGd028234af [2020-11-28 03:15:36,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/data/02a075a65/5576ac09ee0444fcaf3eb7a67677a788 [2020-11-28 03:15:36,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:36,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:36,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:36,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:36,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:36,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e30a25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36, skipping insertion in model container [2020-11-28 03:15:36,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:36,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:36,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:36,282 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:36,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:36,336 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:36,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36 WrapperNode [2020-11-28 03:15:36,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:36,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:36,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:36,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:36,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:36,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:36,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:36,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:36,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:36,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:36,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:36,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:36,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/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 [2020-11-28 03:15:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:36,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:36,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-28 03:15:37,716 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:37,716 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-11-28 03:15:37,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:37 BoogieIcfgContainer [2020-11-28 03:15:37,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:37,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:37,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:37,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:37,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:36" (1/3) ... [2020-11-28 03:15:37,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da7601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:37, skipping insertion in model container [2020-11-28 03:15:37,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (2/3) ... [2020-11-28 03:15:37,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da7601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:37, skipping insertion in model container [2020-11-28 03:15:37,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:37" (3/3) ... [2020-11-28 03:15:37,727 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound1.c [2020-11-28 03:15:37,739 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:37,743 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:15:37,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:15:37,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:37,779 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:37,779 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:37,779 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:37,779 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:37,780 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:37,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:37,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-11-28 03:15:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:15:37,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:37,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:37,801 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash 822857436, now seen corresponding path program 1 times [2020-11-28 03:15:37,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:37,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87752836] [2020-11-28 03:15:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:38,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87752836] [2020-11-28 03:15:38,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:38,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:38,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252574946] [2020-11-28 03:15:38,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:15:38,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:38,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:15:38,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:15:38,054 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-11-28 03:15:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:38,071 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2020-11-28 03:15:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:15:38,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-11-28 03:15:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:38,081 INFO L225 Difference]: With dead ends: 53 [2020-11-28 03:15:38,082 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 03:15:38,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:15:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 03:15:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-28 03:15:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-28 03:15:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-11-28 03:15:38,123 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2020-11-28 03:15:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:38,124 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-11-28 03:15:38,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:15:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-11-28 03:15:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:15:38,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:38,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:38,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:38,125 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:38,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:38,126 INFO L82 PathProgramCache]: Analyzing trace with hash 2114165096, now seen corresponding path program 1 times [2020-11-28 03:15:38,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:38,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899585935] [2020-11-28 03:15:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:38,161 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:15:38,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208941088] [2020-11-28 03:15:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/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 [2020-11-28 03:15:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:38,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:15:38,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:38,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899585935] [2020-11-28 03:15:38,393 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:15:38,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208941088] [2020-11-28 03:15:38,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:38,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:15:38,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959898301] [2020-11-28 03:15:38,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:15:38,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:38,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:15:38,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:15:38,397 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 4 states. [2020-11-28 03:15:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:40,156 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-28 03:15:40,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:15:40,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-28 03:15:40,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:40,157 INFO L225 Difference]: With dead ends: 35 [2020-11-28 03:15:40,157 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 03:15:40,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:15:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 03:15:40,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-11-28 03:15:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-28 03:15:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-28 03:15:40,165 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 17 [2020-11-28 03:15:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:40,165 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-28 03:15:40,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:15:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-28 03:15:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:15:40,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:40,167 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:40,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:15:40,372 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:40,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:40,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1094861916, now seen corresponding path program 1 times [2020-11-28 03:15:40,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:40,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223158291] [2020-11-28 03:15:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:40,409 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:15:40,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713592530] [2020-11-28 03:15:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:40,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-28 03:15:40,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:40,571 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:15:40,571 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:15:40,619 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:15:40,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:15:40,681 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:15:40,682 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:15:40,755 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:15:40,756 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:15:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:41,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223158291] [2020-11-28 03:15:41,033 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:15:41,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713592530] [2020-11-28 03:15:41,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:41,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:15:41,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085797359] [2020-11-28 03:15:41,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:15:41,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:41,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:15:41,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:15:41,036 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 11 states. [2020-11-28 03:15:41,476 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 22 [2020-11-28 03:15:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:41,512 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-28 03:15:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:15:41,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-11-28 03:15:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:41,517 INFO L225 Difference]: With dead ends: 27 [2020-11-28 03:15:41,517 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:15:41,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-11-28 03:15:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:15:41,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:15:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:15:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:15:41,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-28 03:15:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:41,520 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:41,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:15:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:41,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:15:41,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:15:41,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:15:41,890 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 24 [2020-11-28 03:15:41,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-28 03:15:41,966 INFO L277 CegarLoopResult]: At program point L56(lines 19 57) the Hoare annotation is: true [2020-11-28 03:15:41,966 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:15:41,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:15:41,967 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:15:41,967 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-28 03:15:41,967 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-28 03:15:41,967 INFO L270 CegarLoopResult]: At program point L12-1(lines 40 41) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~b~0 4294967296))) (and (<= (mod ULTIMATE.start_main_~a~0 4294967296) 1) (<= 1 .cse0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (<= 1 (mod ULTIMATE.start_main_~x~0 4294967296)) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= .cse0 1))) [2020-11-28 03:15:41,967 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-28 03:15:41,967 INFO L277 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: true [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8-4(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L8-5(lines 8 10) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 50) no Hoare annotation was computed. [2020-11-28 03:15:41,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9-6(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9-8(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,969 INFO L274 CegarLoopResult]: For program point L9-10(line 9) no Hoare annotation was computed. [2020-11-28 03:15:41,970 INFO L274 CegarLoopResult]: For program point L43(lines 43 49) no Hoare annotation was computed. [2020-11-28 03:15:41,970 INFO L270 CegarLoopResult]: At program point L43-2(lines 37 50) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~b~0 4294967296))) (and (<= (mod ULTIMATE.start_main_~a~0 4294967296) 1) (<= 1 .cse0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~v~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~u~0) (<= 1 (mod ULTIMATE.start_main_~x~0 4294967296)) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= .cse0 1))) [2020-11-28 03:15:41,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:41 BoogieIcfgContainer [2020-11-28 03:15:41,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:41,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:41,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:41,991 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:41,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:37" (3/4) ... [2020-11-28 03:15:41,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:15:42,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-11-28 03:15:42,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 03:15:42,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:15:42,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:42,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:15:42,083 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_feca3031-ee95-4f55-b901-aa2f6604c5f2/bin/uautomizer/witness.graphml [2020-11-28 03:15:42,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:42,085 INFO L168 Benchmark]: Toolchain (without parser) took 6078.63 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 60.8 MB in the beginning and 77.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,086 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:42,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.78 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 67.2 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 65.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,087 INFO L168 Benchmark]: Boogie Preprocessor took 46.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 64.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:42,087 INFO L168 Benchmark]: RCFGBuilder took 1273.59 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 49.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,088 INFO L168 Benchmark]: TraceAbstraction took 4270.42 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 49.4 MB in the beginning and 80.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,088 INFO L168 Benchmark]: Witness Printer took 93.48 ms. Allocated memory is still 119.5 MB. Free memory was 80.9 MB in the beginning and 77.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:42,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.78 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 67.2 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 65.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 64.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1273.59 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 49.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4270.42 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 49.4 MB in the beginning and 80.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Witness Printer took 93.48 ms. Allocated memory is still 119.5 MB. Free memory was 80.9 MB in the beginning and 77.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((a % 4294967296 <= 1 && 1 <= b % 4294967296) && a == v) && a == x) && 1 <= cond) && b == u) && 1 <= x % 4294967296) && cond == 1) && b == y) && b % 4294967296 <= 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((a % 4294967296 <= 1 && 1 <= b % 4294967296) && a == v) && a == x) && b == u) && 1 <= x % 4294967296) && cond == 1) && b == y) && b % 4294967296 <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 50 SDslu, 36 SDs, 0 SdLazy, 65 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 77 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 7416 SizeOfPredicates, 19 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...