./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_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_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/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 0319027e70a0d2daf010f688863825be9b20c732 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:11:26,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:26,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:26,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:26,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:26,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:26,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:26,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:26,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:26,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:26,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:26,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:26,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:26,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:26,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:26,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:26,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:26,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:26,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:26,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:26,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:26,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:26,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:26,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:26,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:26,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:26,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:26,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:26,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:26,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:26,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:26,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:26,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:26,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:26,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:26,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:26,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:26,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:26,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:26,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:26,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:26,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:26,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:26,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:26,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:26,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:26,951 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:26,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:26,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:26,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:26,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:26,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:26,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:26,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:26,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:26,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:26,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:26,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:26,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:26,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:26,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:26,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:26,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:26,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:26,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:26,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:26,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:26,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:26,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:26,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:26,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:26,958 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_9b8c2f63-774e-4054-899e-c07774cc6ebc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0319027e70a0d2daf010f688863825be9b20c732 [2020-11-28 03:11:27,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:27,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:27,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:27,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:27,365 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:27,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2020-11-28 03:11:27,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/data/32144c482/d696262084aa413c93d485d6befb963f/FLAG860c0d2c8 [2020-11-28 03:11:28,011 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:28,012 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound1.c [2020-11-28 03:11:28,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/data/32144c482/d696262084aa413c93d485d6befb963f/FLAG860c0d2c8 [2020-11-28 03:11:28,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/data/32144c482/d696262084aa413c93d485d6befb963f [2020-11-28 03:11:28,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:28,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:28,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:28,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:28,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:28,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43596c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28, skipping insertion in model container [2020-11-28 03:11:28,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:28,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:28,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:28,690 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:28,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:28,732 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:28,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28 WrapperNode [2020-11-28 03:11:28,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:28,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:28,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:28,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:28,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:28,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:28,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:28,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:28,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... [2020-11-28 03:11:28,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:28,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:28,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:28,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:28,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/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 03:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:28,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:29,513 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:29,513 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-11-28 03:11:29,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29 BoogieIcfgContainer [2020-11-28 03:11:29,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:29,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:29,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:29,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:29,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:28" (1/3) ... [2020-11-28 03:11:29,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444ad6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:29, skipping insertion in model container [2020-11-28 03:11:29,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:28" (2/3) ... [2020-11-28 03:11:29,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444ad6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:29, skipping insertion in model container [2020-11-28 03:11:29,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29" (3/3) ... [2020-11-28 03:11:29,529 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound1.c [2020-11-28 03:11:29,544 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:29,549 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-28 03:11:29,561 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-28 03:11:29,592 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:29,592 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:29,593 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:29,593 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:29,593 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:29,593 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:29,593 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:29,594 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-28 03:11:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:11:29,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:29,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:29,621 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:29,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:29,628 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-28 03:11:29,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:29,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014734221] [2020-11-28 03:11:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:29,811 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 03:11:29,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014734221] [2020-11-28 03:11:29,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:29,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:29,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144177357] [2020-11-28 03:11:29,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:29,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:29,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:29,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:29,841 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-28 03:11:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:29,866 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-11-28 03:11:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:29,868 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 03:11:29,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:29,879 INFO L225 Difference]: With dead ends: 83 [2020-11-28 03:11:29,880 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 03:11:29,884 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 03:11:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 03:11:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 03:11:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 03:11:29,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-11-28 03:11:29,930 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2020-11-28 03:11:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:29,931 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-11-28 03:11:29,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-11-28 03:11:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:11:29,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:29,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:29,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:29,933 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:29,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-28 03:11:29,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:29,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089180178] [2020-11-28 03:11:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:29,989 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:29,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690983974] [2020-11-28 03:11:29,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/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 03:11:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:30,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 03:11:30,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:30,245 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:11:30,245 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:30,313 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:11:30,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:30,443 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 03:11:30,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089180178] [2020-11-28 03:11:30,444 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:30,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690983974] [2020-11-28 03:11:30,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:30,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:11:30,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790325195] [2020-11-28 03:11:30,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:30,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:30,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:30,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:30,449 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 8 states. [2020-11-28 03:11:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:30,971 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-11-28 03:11:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:11:30,974 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 03:11:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,976 INFO L225 Difference]: With dead ends: 52 [2020-11-28 03:11:30,976 INFO L226 Difference]: Without dead ends: 50 [2020-11-28 03:11:30,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:11:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-28 03:11:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-11-28 03:11:30,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 03:11:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-11-28 03:11:30,992 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2020-11-28 03:11:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,993 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-11-28 03:11:30,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-11-28 03:11:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:11:30,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:30,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:31,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:11:31,216 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:31,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:31,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1277140292, now seen corresponding path program 1 times [2020-11-28 03:11:31,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:31,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846904253] [2020-11-28 03:11:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:31,241 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:31,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498065670] [2020-11-28 03:11:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/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 03:11:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:31,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 03:11:31,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:31,357 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:11:31,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:31,413 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:11:31,413 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:31,511 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 03:11:31,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846904253] [2020-11-28 03:11:31,511 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:31,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498065670] [2020-11-28 03:11:31,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:31,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:11:31,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705908955] [2020-11-28 03:11:31,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:31,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:31,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:31,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:31,515 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2020-11-28 03:11:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:32,043 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2020-11-28 03:11:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:11:32,044 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-28 03:11:32,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:32,046 INFO L225 Difference]: With dead ends: 69 [2020-11-28 03:11:32,046 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 03:11:32,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:11:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 03:11:32,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2020-11-28 03:11:32,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 03:11:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2020-11-28 03:11:32,070 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2020-11-28 03:11:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:32,071 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2020-11-28 03:11:32,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2020-11-28 03:11:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:11:32,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:32,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:32,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:32,300 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1834773734, now seen corresponding path program 1 times [2020-11-28 03:11:32,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:32,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316458379] [2020-11-28 03:11:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:32,321 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:32,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873013781] [2020-11-28 03:11:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:32,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-28 03:11:32,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:32,448 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:11:32,449 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:32,499 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:11:32,500 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:32,635 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 03:11:32,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316458379] [2020-11-28 03:11:32,636 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:32,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873013781] [2020-11-28 03:11:32,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:32,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:11:32,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129039184] [2020-11-28 03:11:32,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:11:32,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:32,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:11:32,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:11:32,640 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 9 states. [2020-11-28 03:11:33,101 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 14 [2020-11-28 03:11:33,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:33,409 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2020-11-28 03:11:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:11:33,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-28 03:11:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:33,412 INFO L225 Difference]: With dead ends: 93 [2020-11-28 03:11:33,412 INFO L226 Difference]: Without dead ends: 87 [2020-11-28 03:11:33,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:11:33,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-28 03:11:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 72. [2020-11-28 03:11:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:11:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2020-11-28 03:11:33,436 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2020-11-28 03:11:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:33,437 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2020-11-28 03:11:33,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:11:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2020-11-28 03:11:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:11:33,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:33,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:33,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:33,656 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:33,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1756992684, now seen corresponding path program 1 times [2020-11-28 03:11:33,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:33,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598587816] [2020-11-28 03:11:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:33,677 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:33,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018043526] [2020-11-28 03:11:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:33,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:11:33,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:33,757 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:11:33,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:33,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:33,842 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 03:11:33,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598587816] [2020-11-28 03:11:33,843 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:33,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018043526] [2020-11-28 03:11:33,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:33,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:11:33,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125281521] [2020-11-28 03:11:33,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:11:33,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:33,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:11:33,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:11:33,846 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 6 states. [2020-11-28 03:11:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:34,119 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2020-11-28 03:11:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:11:34,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-28 03:11:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:34,122 INFO L225 Difference]: With dead ends: 72 [2020-11-28 03:11:34,122 INFO L226 Difference]: Without dead ends: 70 [2020-11-28 03:11:34,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:11:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-28 03:11:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-11-28 03:11:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-28 03:11:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-11-28 03:11:34,137 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2020-11-28 03:11:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:34,138 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-11-28 03:11:34,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:11:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-11-28 03:11:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:11:34,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:34,140 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, 1, 1, 1, 1] [2020-11-28 03:11:34,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:34,368 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:34,369 INFO L82 PathProgramCache]: Analyzing trace with hash 746982291, now seen corresponding path program 1 times [2020-11-28 03:11:34,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:34,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373906126] [2020-11-28 03:11:34,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:34,388 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:34,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302709350] [2020-11-28 03:11:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:34,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 03:11:34,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:34,497 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:11:34,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:34,541 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:11:34,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:34,620 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 03:11:34,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373906126] [2020-11-28 03:11:34,621 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:34,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302709350] [2020-11-28 03:11:34,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:34,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:11:34,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622995114] [2020-11-28 03:11:34,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:11:34,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:34,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:11:34,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:11:34,624 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 8 states. [2020-11-28 03:11:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:34,892 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-11-28 03:11:34,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:11:34,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-28 03:11:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:34,894 INFO L225 Difference]: With dead ends: 91 [2020-11-28 03:11:34,894 INFO L226 Difference]: Without dead ends: 41 [2020-11-28 03:11:34,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:11:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-28 03:11:34,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2020-11-28 03:11:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-28 03:11:34,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2020-11-28 03:11:34,903 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 25 [2020-11-28 03:11:34,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:34,910 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2020-11-28 03:11:34,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:11:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-11-28 03:11:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:11:34,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:34,912 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:35,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 03:11:35,133 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:35,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:35,134 INFO L82 PathProgramCache]: Analyzing trace with hash 23956023, now seen corresponding path program 1 times [2020-11-28 03:11:35,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:35,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34930609] [2020-11-28 03:11:35,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:35,161 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 03:11:35,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251844796] [2020-11-28 03:11:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:35,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-28 03:11:35,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:35,265 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-28 03:11:35,265 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:11:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:35,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34930609] [2020-11-28 03:11:35,578 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 03:11:35,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251844796] [2020-11-28 03:11:35,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:35,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-28 03:11:35,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383886449] [2020-11-28 03:11:35,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:11:35,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:35,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:11:35,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:11:35,584 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 11 states. [2020-11-28 03:11:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:35,996 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2020-11-28 03:11:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:11:35,996 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2020-11-28 03:11:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:35,997 INFO L225 Difference]: With dead ends: 49 [2020-11-28 03:11:35,997 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:11:35,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:11:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:11:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:11:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:11:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:11:35,999 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-11-28 03:11:35,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:35,999 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:35,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:11:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:11:35,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:11:36,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:36,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:11:36,614 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2020-11-28 03:11:36,886 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-28 03:11:37,021 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-11-28 03:11:37,024 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:11:37,025 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:11:37,026 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:11:37,026 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 03:11:37,026 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-28 03:11:37,026 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,027 INFO L270 CegarLoopResult]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~y~0 1)) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~a~0 1) .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0)) (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~b~0)) .cse1 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1) .cse0 (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse1 (= ULTIMATE.start_main_~b~0 0)))) [2020-11-28 03:11:37,027 INFO L274 CegarLoopResult]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2020-11-28 03:11:37,027 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,027 INFO L270 CegarLoopResult]: At program point L47-2(lines 47 59) the Hoare annotation is: (and (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~a~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= 1 ULTIMATE.start_main_~b~0)) [2020-11-28 03:11:37,027 INFO L274 CegarLoopResult]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2020-11-28 03:11:37,028 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,028 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,028 INFO L270 CegarLoopResult]: At program point L15-1(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~y~0 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~a~0 1) .cse0 (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) .cse1 (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 1) .cse0 .cse1 (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse2))) [2020-11-28 03:11:37,028 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,029 INFO L270 CegarLoopResult]: At program point L15-3(lines 42 43) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~y~0 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~a~0 1) .cse0 .cse1 (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (< ULTIMATE.start_main_~x~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~y~0) .cse0 .cse1 (<= 0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse2))) [2020-11-28 03:11:37,029 INFO L274 CegarLoopResult]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,029 INFO L270 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~a~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= 1 ULTIMATE.start_main_~b~0)) [2020-11-28 03:11:37,029 INFO L274 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,029 INFO L270 CegarLoopResult]: At program point L15-7(lines 14 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~a~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= 1 ULTIMATE.start_main_~b~0)) [2020-11-28 03:11:37,029 INFO L274 CegarLoopResult]: For program point L15-8(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,030 INFO L270 CegarLoopResult]: At program point L15-9(lines 52 53) the Hoare annotation is: (and (<= ULTIMATE.start_main_~r~0 1) (= ULTIMATE.start_main_~a~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~r~0) (<= 1 ULTIMATE.start_main_~b~0)) [2020-11-28 03:11:37,030 INFO L274 CegarLoopResult]: For program point L15-10(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,030 INFO L270 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: false [2020-11-28 03:11:37,030 INFO L274 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-11-28 03:11:37,030 INFO L277 CegarLoopResult]: At program point L15-13(lines 14 20) the Hoare annotation is: true [2020-11-28 03:11:37,031 INFO L277 CegarLoopResult]: At program point L65(lines 22 66) the Hoare annotation is: true [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,031 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,032 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,032 INFO L274 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,032 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-11-28 03:11:37,032 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:11:37,032 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 03:11:37,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:37 BoogieIcfgContainer [2020-11-28 03:11:37,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:37,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:37,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:37,062 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:37,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:29" (3/4) ... [2020-11-28 03:11:37,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:11:37,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-28 03:11:37,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:11:37,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:37,082 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:37,151 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9b8c2f63-774e-4054-899e-c07774cc6ebc/bin/uautomizer/witness.graphml [2020-11-28 03:11:37,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:37,153 INFO L168 Benchmark]: Toolchain (without parser) took 8765.53 ms. Allocated memory was 113.2 MB in the beginning and 182.5 MB in the end (delta: 69.2 MB). Free memory was 85.6 MB in the beginning and 115.7 MB in the end (delta: -30.1 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,154 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 73.0 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:37,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.00 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 90.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,156 INFO L168 Benchmark]: Boogie Preprocessor took 46.48 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:37,157 INFO L168 Benchmark]: RCFGBuilder took 685.46 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 70.5 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,158 INFO L168 Benchmark]: TraceAbstraction took 7543.67 ms. Allocated memory was 113.2 MB in the beginning and 182.5 MB in the end (delta: 69.2 MB). Free memory was 70.2 MB in the beginning and 118.8 MB in the end (delta: -48.6 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,158 INFO L168 Benchmark]: Witness Printer took 90.19 ms. Allocated memory is still 182.5 MB. Free memory was 118.8 MB in the beginning and 115.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:37,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 73.0 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.00 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 90.1 MB in the end (delta: -4.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 88.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.48 ms. Allocated memory is still 113.2 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 685.46 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 70.5 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7543.67 ms. Allocated memory was 113.2 MB in the beginning and 182.5 MB in the end (delta: 69.2 MB). Free memory was 70.2 MB in the beginning and 118.8 MB in the end (delta: -48.6 MB). Peak memory consumption was 88.8 MB. Max. memory is 16.1 GB. * Witness Printer took 90.19 ms. Allocated memory is still 182.5 MB. Free memory was 118.8 MB in the beginning and 115.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((r <= 1 && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) && 1 <= b - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((r <= 1 && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) && 1 <= b - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((x == r + y && a == q) && a == 1) && y <= 1) && 1 == cond) && y <= x) && x < 2 * b) && cond == 1) && b == y) || (((((((x <= 1 && 1 <= y) && y <= 1) && 1 == cond) && 0 <= x) && r == x) && q == 0) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((r <= 1 && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) && 1 <= b - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((r <= 1 && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && y <= r) && 1 <= b - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((x == r + y && a == q) && a == 1) && y <= 1) && y <= x) && 1 == cond) && x < 2 * b) && cond == 1) && b == y) || (((((((1 <= y && x <= 1) && y <= 1) && 1 == cond) && 0 <= x) && r == x) && q == 0) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((a == q && a == 1) && y <= 1) && 1 == cond) && y <= x) && x == r + b) && x < 2 * b) && cond == 1) && b == y) || ((((((((1 <= y && x <= 1) && y <= 1) && 0 <= x) && a == 0) && r == x) && q == 0) && cond == 1) && b == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 697 SDslu, 176 SDs, 0 SdLazy, 423 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 22 NumberOfFragments, 292 HoareAnnotationTreeSize, 10 FomulaSimplifications, 384 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 132 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18321 SizeOfPredicates, 58 NumberOfNonLiveVariables, 539 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 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...