./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.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_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 c4a921a48f99bfe08f1ebfef6b48605d2b05f34d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:46:28,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:28,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:28,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:28,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:28,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:28,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:28,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:28,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:28,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:28,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:28,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:28,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:28,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:28,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:28,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:28,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:28,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:28,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:28,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:28,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:28,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:28,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:28,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:28,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:28,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:28,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:28,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:28,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:28,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:28,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:28,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:28,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:28,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:28,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:28,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:28,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:28,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:28,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:28,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:28,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:28,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:46:28,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:28,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:28,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:28,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:28,933 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:46:28,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:28,934 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:28,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:28,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:28,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:28,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:46:28,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:28,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:46:28,936 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:28,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:46:28,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:28,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:46:28,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:28,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:46:28,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:28,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:46:28,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:28,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:28,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:28,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:46:28,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:46:28,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:46:28,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:46:28,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:46:28,946 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_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4a921a48f99bfe08f1ebfef6b48605d2b05f34d [2020-11-30 00:46:29,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:29,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:29,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:29,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:29,295 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:29,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-11-30 00:46:29,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/data/6820414da/9dd9153bb24f4416988d1e495eaef051/FLAGc6d5b6130 [2020-11-30 00:46:29,950 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:29,950 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-11-30 00:46:29,957 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/data/6820414da/9dd9153bb24f4416988d1e495eaef051/FLAGc6d5b6130 [2020-11-30 00:46:30,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/data/6820414da/9dd9153bb24f4416988d1e495eaef051 [2020-11-30 00:46:30,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:30,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:46:30,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:30,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:30,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:30,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65996e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30, skipping insertion in model container [2020-11-30 00:46:30,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:30,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:30,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:30,594 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:30,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:30,627 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:30,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30 WrapperNode [2020-11-30 00:46:30,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:30,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:30,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:46:30,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:46:30,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:30,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:30,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:30,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:30,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... [2020-11-30 00:46:30,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:30,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:30,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:30,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:30,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:46:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:31,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:31,160 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-11-30 00:46:31,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:31 BoogieIcfgContainer [2020-11-30 00:46:31,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:31,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:46:31,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:46:31,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:46:31,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:46:30" (1/3) ... [2020-11-30 00:46:31,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439d0717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:31, skipping insertion in model container [2020-11-30 00:46:31,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:30" (2/3) ... [2020-11-30 00:46:31,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439d0717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:31, skipping insertion in model container [2020-11-30 00:46:31,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:31" (3/3) ... [2020-11-30 00:46:31,176 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound5.c [2020-11-30 00:46:31,188 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:46:31,192 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-11-30 00:46:31,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-30 00:46:31,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:46:31,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:46:31,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:46:31,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:46:31,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:46:31,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:46:31,257 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:46:31,257 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:46:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-30 00:46:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:46:31,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:31,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:31,295 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]=== [2020-11-30 00:46:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-11-30 00:46:31,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:31,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160841749] [2020-11-30 00:46:31,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:31,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160841749] [2020-11-30 00:46:31,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:31,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:31,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022577787] [2020-11-30 00:46:31,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:46:31,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:31,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:46:31,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:46:31,526 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-30 00:46:31,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:31,561 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-11-30 00:46:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:46:31,563 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 00:46:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:31,589 INFO L225 Difference]: With dead ends: 83 [2020-11-30 00:46:31,589 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:46:31,593 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 [2020-11-30 00:46:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:46:31,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 00:46:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 00:46:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-11-30 00:46:31,652 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2020-11-30 00:46:31,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:31,653 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-11-30 00:46:31,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:46:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-11-30 00:46:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:46:31,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:31,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:31,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:46:31,658 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]=== [2020-11-30 00:46:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-11-30 00:46:31,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:31,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334256897] [2020-11-30 00:46:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:31,735 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:31,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728430767] [2020-11-30 00:46:31,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:31,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:46:31,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:31,926 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:31,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:32,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334256897] [2020-11-30 00:46:32,022 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:32,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728430767] [2020-11-30 00:46:32,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:32,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:32,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311858051] [2020-11-30 00:46:32,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:32,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:32,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:32,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:32,028 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2020-11-30 00:46:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:32,327 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-11-30 00:46:32,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:46:32,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-30 00:46:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:32,330 INFO L225 Difference]: With dead ends: 52 [2020-11-30 00:46:32,330 INFO L226 Difference]: Without dead ends: 50 [2020-11-30 00:46:32,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-30 00:46:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-11-30 00:46:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 00:46:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-11-30 00:46:32,350 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2020-11-30 00:46:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:32,351 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-11-30 00:46:32,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-11-30 00:46:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:46:32,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:32,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:32,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 00:46:32,580 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]=== [2020-11-30 00:46:32,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:32,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1277140292, now seen corresponding path program 1 times [2020-11-30 00:46:32,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:32,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217852070] [2020-11-30 00:46:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:32,607 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:32,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939164128] [2020-11-30 00:46:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:32,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:46:32,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:32,719 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:32,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:32,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217852070] [2020-11-30 00:46:32,760 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:32,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939164128] [2020-11-30 00:46:32,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:32,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:32,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746167020] [2020-11-30 00:46:32,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:32,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:32,763 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 6 states. [2020-11-30 00:46:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:33,029 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2020-11-30 00:46:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:46:33,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-30 00:46:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:33,032 INFO L225 Difference]: With dead ends: 69 [2020-11-30 00:46:33,032 INFO L226 Difference]: Without dead ends: 61 [2020-11-30 00:46:33,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:33,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-30 00:46:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2020-11-30 00:46:33,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 00:46:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2020-11-30 00:46:33,062 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2020-11-30 00:46:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:33,062 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2020-11-30 00:46:33,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2020-11-30 00:46:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:46:33,065 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:33,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:33,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:33,267 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]=== [2020-11-30 00:46:33,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:33,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1834773734, now seen corresponding path program 1 times [2020-11-30 00:46:33,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:33,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548083059] [2020-11-30 00:46:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:33,282 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:33,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829990605] [2020-11-30 00:46:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:33,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:46:33,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:33,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548083059] [2020-11-30 00:46:33,402 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:33,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829990605] [2020-11-30 00:46:33,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:33,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:46:33,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240001894] [2020-11-30 00:46:33,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:33,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:33,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:33,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:33,405 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2020-11-30 00:46:33,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:33,560 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2020-11-30 00:46:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:46:33,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-30 00:46:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:33,565 INFO L225 Difference]: With dead ends: 95 [2020-11-30 00:46:33,565 INFO L226 Difference]: Without dead ends: 89 [2020-11-30 00:46:33,565 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 [2020-11-30 00:46:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-30 00:46:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2020-11-30 00:46:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-30 00:46:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2020-11-30 00:46:33,590 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2020-11-30 00:46:33,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:33,591 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2020-11-30 00:46:33,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2020-11-30 00:46:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:46:33,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:33,592 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] [2020-11-30 00:46:33,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:33,793 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]=== [2020-11-30 00:46:33,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:33,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1756992684, now seen corresponding path program 1 times [2020-11-30 00:46:33,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:33,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914089586] [2020-11-30 00:46:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:33,812 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:33,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484052943] [2020-11-30 00:46:33,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:33,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 00:46:33,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:33,884 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:33,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:33,906 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:33,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914089586] [2020-11-30 00:46:33,948 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:33,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484052943] [2020-11-30 00:46:33,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:33,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:46:33,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581940400] [2020-11-30 00:46:33,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:33,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:33,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:33,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:33,950 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 6 states. [2020-11-30 00:46:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:34,133 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2020-11-30 00:46:34,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:46:34,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-30 00:46:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:34,135 INFO L225 Difference]: With dead ends: 72 [2020-11-30 00:46:34,135 INFO L226 Difference]: Without dead ends: 70 [2020-11-30 00:46:34,136 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 [2020-11-30 00:46:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-11-30 00:46:34,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-11-30 00:46:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-30 00:46:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2020-11-30 00:46:34,146 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2020-11-30 00:46:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:34,147 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2020-11-30 00:46:34,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2020-11-30 00:46:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:46:34,148 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:34,148 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] [2020-11-30 00:46:34,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:34,355 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]=== [2020-11-30 00:46:34,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash 746982291, now seen corresponding path program 1 times [2020-11-30 00:46:34,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:34,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116553271] [2020-11-30 00:46:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:34,373 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:34,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426982083] [2020-11-30 00:46:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:34,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 35 conjunts are in the unsatisfiable core [2020-11-30 00:46:34,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:34,460 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:46:34,460 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:34,505 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:34,506 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:34,653 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:46:35,773 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-30 00:46:35,781 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-11-30 00:46:35,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:36,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:36,198 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:46:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:36,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116553271] [2020-11-30 00:46:36,249 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:36,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426982083] [2020-11-30 00:46:36,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:36,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-30 00:46:36,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799663332] [2020-11-30 00:46:36,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 00:46:36,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:36,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:46:36,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=144, Unknown=1, NotChecked=0, Total=182 [2020-11-30 00:46:36,257 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 14 states. [2020-11-30 00:46:37,190 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 25 [2020-11-30 00:46:37,394 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2020-11-30 00:46:38,587 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2020-11-30 00:46:39,549 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-11-30 00:46:42,726 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 31 [2020-11-30 00:46:43,957 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2020-11-30 00:46:44,864 WARN L193 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-30 00:46:56,638 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-30 00:46:57,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:57,906 INFO L93 Difference]: Finished difference Result 172 states and 186 transitions. [2020-11-30 00:46:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-30 00:46:57,907 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-11-30 00:46:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:57,909 INFO L225 Difference]: With dead ends: 172 [2020-11-30 00:46:57,909 INFO L226 Difference]: Without dead ends: 166 [2020-11-30 00:46:57,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=255, Invalid=599, Unknown=16, NotChecked=0, Total=870 [2020-11-30 00:46:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-30 00:46:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 101. [2020-11-30 00:46:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-30 00:46:57,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-30 00:46:57,936 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 25 [2020-11-30 00:46:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:57,937 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-30 00:46:57,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 00:46:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-30 00:46:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 00:46:57,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:57,939 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] [2020-11-30 00:46:58,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 00:46:58,162 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]=== [2020-11-30 00:46:58,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash 23956023, now seen corresponding path program 1 times [2020-11-30 00:46:58,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:58,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563335168] [2020-11-30 00:46:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:58,193 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:58,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343381067] [2020-11-30 00:46:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/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 [2020-11-30 00:46:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:58,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:46:58,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:58,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563335168] [2020-11-30 00:46:58,314 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:58,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343381067] [2020-11-30 00:46:58,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:58,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-30 00:46:58,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584787297] [2020-11-30 00:46:58,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:46:58,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:46:58,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:58,317 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 6 states. [2020-11-30 00:46:58,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:58,607 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2020-11-30 00:46:58,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:46:58,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-11-30 00:46:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:58,611 INFO L225 Difference]: With dead ends: 153 [2020-11-30 00:46:58,611 INFO L226 Difference]: Without dead ends: 145 [2020-11-30 00:46:58,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:46:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-30 00:46:58,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-11-30 00:46:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-30 00:46:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2020-11-30 00:46:58,637 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 26 [2020-11-30 00:46:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:58,638 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2020-11-30 00:46:58,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:46:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2020-11-30 00:46:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-30 00:46:58,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:58,640 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:58,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:58,845 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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]=== [2020-11-30 00:46:58,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:58,846 INFO L82 PathProgramCache]: Analyzing trace with hash -722493562, now seen corresponding path program 2 times [2020-11-30 00:46:58,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:58,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735316486] [2020-11-30 00:46:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:58,859 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:46:58,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212208748] [2020-11-30 00:46:58,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:58,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:46:58,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:46:58,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-30 00:46:58,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:58,964 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:46:58,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:59,000 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:46:59,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:59,140 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:46:59,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:46:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:59,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735316486] [2020-11-30 00:46:59,173 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:46:59,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212208748] [2020-11-30 00:46:59,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:59,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-11-30 00:46:59,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846078784] [2020-11-30 00:46:59,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-30 00:46:59,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:59,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-30 00:46:59,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:46:59,175 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand 12 states. [2020-11-30 00:47:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:00,238 INFO L93 Difference]: Finished difference Result 196 states and 223 transitions. [2020-11-30 00:47:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:47:00,239 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-11-30 00:47:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:00,241 INFO L225 Difference]: With dead ends: 196 [2020-11-30 00:47:00,241 INFO L226 Difference]: Without dead ends: 147 [2020-11-30 00:47:00,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-11-30 00:47:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-30 00:47:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 87. [2020-11-30 00:47:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-30 00:47:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2020-11-30 00:47:00,270 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 34 [2020-11-30 00:47:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:00,271 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2020-11-30 00:47:00,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-30 00:47:00,271 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2020-11-30 00:47:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-30 00:47:00,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:00,274 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:00,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:00,494 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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]=== [2020-11-30 00:47:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:00,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1714844836, now seen corresponding path program 1 times [2020-11-30 00:47:00,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:00,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885782799] [2020-11-30 00:47:00,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:00,521 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:00,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824855815] [2020-11-30 00:47:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:47:00,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2020-11-30 00:47:00,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:00,610 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:47:00,611 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:01,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885782799] [2020-11-30 00:47:01,003 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:01,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824855815] [2020-11-30 00:47:01,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:47:01,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-30 00:47:01,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144369384] [2020-11-30 00:47:01,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-30 00:47:01,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:01,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-30 00:47:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:47:01,006 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand 13 states. [2020-11-30 00:47:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:01,619 INFO L93 Difference]: Finished difference Result 147 states and 159 transitions. [2020-11-30 00:47:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 00:47:01,626 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2020-11-30 00:47:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:01,627 INFO L225 Difference]: With dead ends: 147 [2020-11-30 00:47:01,627 INFO L226 Difference]: Without dead ends: 139 [2020-11-30 00:47:01,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2020-11-30 00:47:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-30 00:47:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 96. [2020-11-30 00:47:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-30 00:47:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2020-11-30 00:47:01,648 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 35 [2020-11-30 00:47:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:01,648 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2020-11-30 00:47:01,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-30 00:47:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2020-11-30 00:47:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-30 00:47:01,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:01,650 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:01,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-30 00:47:01,864 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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]=== [2020-11-30 00:47:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash 810001052, now seen corresponding path program 2 times [2020-11-30 00:47:01,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:01,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307414470] [2020-11-30 00:47:01,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:01,876 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:01,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233595133] [2020-11-30 00:47:01,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:01,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:47:01,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:01,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:47:01,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:02,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307414470] [2020-11-30 00:47:02,005 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:02,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233595133] [2020-11-30 00:47:02,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:02,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:47:02,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567520099] [2020-11-30 00:47:02,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:47:02,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:02,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:47:02,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:47:02,007 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand 5 states. [2020-11-30 00:47:02,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:02,115 INFO L93 Difference]: Finished difference Result 177 states and 190 transitions. [2020-11-30 00:47:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:47:02,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-11-30 00:47:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:02,117 INFO L225 Difference]: With dead ends: 177 [2020-11-30 00:47:02,117 INFO L226 Difference]: Without dead ends: 110 [2020-11-30 00:47:02,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:47:02,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-30 00:47:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 102. [2020-11-30 00:47:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:47:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2020-11-30 00:47:02,142 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 39 [2020-11-30 00:47:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:02,145 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2020-11-30 00:47:02,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:47:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2020-11-30 00:47:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 00:47:02,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:02,155 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:02,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:02,370 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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]=== [2020-11-30 00:47:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:02,370 INFO L82 PathProgramCache]: Analyzing trace with hash 119141591, now seen corresponding path program 2 times [2020-11-30 00:47:02,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:02,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48081693] [2020-11-30 00:47:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:02,392 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:02,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765326000] [2020-11-30 00:47:02,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:02,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:47:02,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:02,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-30 00:47:02,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:02,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48081693] [2020-11-30 00:47:02,621 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:02,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765326000] [2020-11-30 00:47:02,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:47:02,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-30 00:47:02,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206137891] [2020-11-30 00:47:02,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:47:02,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:02,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:47:02,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:47:02,625 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand 8 states. [2020-11-30 00:47:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:03,063 INFO L93 Difference]: Finished difference Result 152 states and 164 transitions. [2020-11-30 00:47:03,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:47:03,064 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-11-30 00:47:03,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:03,065 INFO L225 Difference]: With dead ends: 152 [2020-11-30 00:47:03,065 INFO L226 Difference]: Without dead ends: 144 [2020-11-30 00:47:03,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:47:03,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-30 00:47:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 111. [2020-11-30 00:47:03,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-30 00:47:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2020-11-30 00:47:03,093 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 44 [2020-11-30 00:47:03,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:03,093 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2020-11-30 00:47:03,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:47:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2020-11-30 00:47:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-30 00:47:03,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:03,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:03,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:03,310 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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]=== [2020-11-30 00:47:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1237724849, now seen corresponding path program 3 times [2020-11-30 00:47:03,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:03,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709513267] [2020-11-30 00:47:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:03,322 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:03,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989800095] [2020-11-30 00:47:03,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:03,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-11-30 00:47:03,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:03,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-30 00:47:03,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:03,429 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-30 00:47:03,429 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-30 00:47:03,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709513267] [2020-11-30 00:47:03,494 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:03,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989800095] [2020-11-30 00:47:03,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:47:03,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:47:03,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460375846] [2020-11-30 00:47:03,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:47:03,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:03,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:47:03,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:47:03,496 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand 7 states. [2020-11-30 00:47:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:05,894 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-11-30 00:47:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 00:47:05,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-11-30 00:47:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:05,896 INFO L225 Difference]: With dead ends: 119 [2020-11-30 00:47:05,896 INFO L226 Difference]: Without dead ends: 105 [2020-11-30 00:47:05,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:47:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-30 00:47:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 87. [2020-11-30 00:47:05,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-30 00:47:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 89 transitions. [2020-11-30 00:47:05,925 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 89 transitions. Word has length 48 [2020-11-30 00:47:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:05,927 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 89 transitions. [2020-11-30 00:47:05,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:47:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2020-11-30 00:47:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-30 00:47:05,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:05,931 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:06,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-30 00:47:06,158 INFO L429 AbstractCegarLoop]: === Iteration 13 === [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]=== [2020-11-30 00:47:06,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:06,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1674794868, now seen corresponding path program 4 times [2020-11-30 00:47:06,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:06,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025112498] [2020-11-30 00:47:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:06,167 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:06,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136494914] [2020-11-30 00:47:06,168 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:06,219 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-11-30 00:47:06,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:06,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:47:06,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:06,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025112498] [2020-11-30 00:47:06,328 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:06,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136494914] [2020-11-30 00:47:06,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:47:06,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-30 00:47:06,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188208868] [2020-11-30 00:47:06,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:47:06,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:06,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:47:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:47:06,330 INFO L87 Difference]: Start difference. First operand 87 states and 89 transitions. Second operand 7 states. [2020-11-30 00:47:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:06,623 INFO L93 Difference]: Finished difference Result 157 states and 160 transitions. [2020-11-30 00:47:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:47:06,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-11-30 00:47:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:06,625 INFO L225 Difference]: With dead ends: 157 [2020-11-30 00:47:06,626 INFO L226 Difference]: Without dead ends: 105 [2020-11-30 00:47:06,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:47:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-30 00:47:06,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 97. [2020-11-30 00:47:06,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-30 00:47:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 100 transitions. [2020-11-30 00:47:06,650 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 100 transitions. Word has length 57 [2020-11-30 00:47:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:06,651 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 100 transitions. [2020-11-30 00:47:06,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:47:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 100 transitions. [2020-11-30 00:47:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-30 00:47:06,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:47:06,652 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:47:06,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-30 00:47:06,866 INFO L429 AbstractCegarLoop]: === Iteration 14 === [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]=== [2020-11-30 00:47:06,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:47:06,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1252937601, now seen corresponding path program 5 times [2020-11-30 00:47:06,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:47:06,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999266813] [2020-11-30 00:47:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:47:06,881 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 00:47:06,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441694637] [2020-11-30 00:47:06,887 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:47:06,968 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2020-11-30 00:47:06,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:47:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 00:47:06,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:47:07,006 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 00:47:07,007 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:47:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:47:07,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999266813] [2020-11-30 00:47:07,228 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-30 00:47:07,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441694637] [2020-11-30 00:47:07,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:47:07,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-30 00:47:07,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015756377] [2020-11-30 00:47:07,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:47:07,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:47:07,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:47:07,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:47:07,234 INFO L87 Difference]: Start difference. First operand 97 states and 100 transitions. Second operand 11 states. [2020-11-30 00:47:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:47:07,735 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-11-30 00:47:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:47:07,737 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2020-11-30 00:47:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:47:07,737 INFO L225 Difference]: With dead ends: 100 [2020-11-30 00:47:07,737 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:47:07,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-11-30 00:47:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:47:07,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:47:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:47:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:47:07,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2020-11-30 00:47:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:47:07,739 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:47:07,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:47:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:47:07,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:47:07,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-30 00:47:07,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:47:08,056 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-11-30 00:47:09,213 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2020-11-30 00:47:09,619 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 46 [2020-11-30 00:47:10,832 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-11-30 00:47:11,496 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2020-11-30 00:47:11,918 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-11-30 00:47:12,618 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2020-11-30 00:47:12,833 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 33 [2020-11-30 00:47:13,551 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 67 [2020-11-30 00:47:13,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,553 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 00:47:13,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,555 INFO L270 CegarLoopResult]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse6 (* ULTIMATE.start_main_~y~0 2)) (.cse7 (= ULTIMATE.start_main_~a~0 1)) (.cse8 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse4 (* ULTIMATE.start_main_~y~0 4)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (let ((.cse3 (<= ULTIMATE.start_main_~x~0 5)) (.cse5 (let ((.cse9 (<= ULTIMATE.start_main_~r~0 5)) (.cse10 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (and .cse0 .cse9 (= ULTIMATE.start_main_~a~0 2) .cse10 .cse1 (= ULTIMATE.start_main_~b~0 .cse6) .cse2) (and .cse0 .cse7 .cse9 .cse10 .cse1 .cse2 .cse8) (and .cse0 (= ULTIMATE.start_main_~b~0 .cse4) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse9 .cse10 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2))))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 0) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse2 .cse3 (= ULTIMATE.start_main_~b~0 0)) (and (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse4)) .cse3 (= ULTIMATE.start_main_~q~0 4) .cse5) (and (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse6)) .cse3 .cse5 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse7 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2 .cse8 .cse3)) (< (+ (div (+ ULTIMATE.start_main_~r~0 (- 2)) 2) 1) ULTIMATE.start_main_~y~0)) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) .cse8 .cse3 .cse5)))) [2020-11-30 00:47:13,555 INFO L274 CegarLoopResult]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2020-11-30 00:47:13,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,555 INFO L270 CegarLoopResult]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse3 (* ULTIMATE.start_main_~y~0 2)) (.cse9 (* ULTIMATE.start_main_~y~0 4)) (.cse7 (<= 1 ULTIMATE.start_main_~r~0)) (.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse8 (= ULTIMATE.start_main_~a~0 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse6 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 2) .cse1 .cse2 (= ULTIMATE.start_main_~b~0 .cse3) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5 .cse6) (and (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) (or (and .cse7 .cse8 .cse1 .cse5 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse9)) .cse6 (= ULTIMATE.start_main_~q~0 4)) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse8 .cse1 (or (and .cse7 (exists ((ULTIMATE.start_main_~q~0 Int)) (let ((.cse10 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) (and (<= 0 .cse10) (<= (+ (* 2 ULTIMATE.start_main_~b~0) .cse10) 5))))) (and .cse7 (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) .cse5 .cse6) (and .cse7 (= ULTIMATE.start_main_~q~0 2) .cse8 .cse1 .cse5 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse3)) .cse6)) .cse11) (and .cse7 .cse0 (= ULTIMATE.start_main_~b~0 .cse9) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse1 .cse2 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 4) .cse6) (and .cse7 .cse0 .cse8 .cse1 .cse2 .cse4 .cse5 .cse11 .cse6))) [2020-11-30 00:47:13,555 INFO L274 CegarLoopResult]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2020-11-30 00:47:13,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,555 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,556 INFO L270 CegarLoopResult]: At program point L15-1(lines 14 20) the Hoare annotation is: (let ((.cse1 (* ULTIMATE.start_main_~y~0 2)) (.cse2 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse9 (<= 1 ULTIMATE.start_main_~y~0)) (.cse8 (* ULTIMATE.start_main_~y~0 4)) (.cse4 (<= 0 ULTIMATE.start_main_~x~0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse7 (<= ULTIMATE.start_main_~x~0 5))) (let ((.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (let ((.cse10 (<= ULTIMATE.start_main_~r~0 5)) (.cse11 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (and .cse9 .cse10 (= ULTIMATE.start_main_~a~0 2) .cse11 .cse4 (= ULTIMATE.start_main_~b~0 .cse1) .cse5 .cse7) (and .cse9 .cse2 .cse10 .cse11 .cse4 .cse5 .cse6 .cse7) (and .cse9 (= ULTIMATE.start_main_~b~0 .cse8) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse10 .cse11 .cse4 (= ULTIMATE.start_main_~a~0 4) .cse5 .cse7))))) (or (and (or (and (= ULTIMATE.start_main_~q~0 2) .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse1)) (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse8)) (= ULTIMATE.start_main_~q~0 4))) (< (+ (div (+ ULTIMATE.start_main_~r~0 (- 2)) 2) 1) ULTIMATE.start_main_~y~0)) (and .cse9 .cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse5 .cse7) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) .cse3 .cse0 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) .cse6)))) [2020-11-30 00:47:13,556 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,556 INFO L270 CegarLoopResult]: At program point L15-3(lines 42 43) the Hoare annotation is: (let ((.cse9 (* ULTIMATE.start_main_~y~0 4)) (.cse10 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse2 (<= 0 ULTIMATE.start_main_~x~0)) (.cse8 (* ULTIMATE.start_main_~y~0 2)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (let ((.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (let ((.cse11 (<= ULTIMATE.start_main_~r~0 5))) (or (and .cse0 (= ULTIMATE.start_main_~b~0 .cse9) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse11 .cse2 (= ULTIMATE.start_main_~a~0 4) .cse3) (and .cse0 .cse10 .cse11 .cse2 .cse3 .cse6) (and .cse0 .cse11 (= ULTIMATE.start_main_~a~0 2) .cse2 (= ULTIMATE.start_main_~b~0 .cse8) .cse3)))) (.cse5 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 0) .cse3 .cse4) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) .cse5 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0) .cse6 .cse7 .cse4) (and (< (+ (div (+ ULTIMATE.start_main_~r~0 (- 2)) 2) 1) ULTIMATE.start_main_~y~0) (or (and (= ULTIMATE.start_main_~q~0 2) .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse8)) .cse7 .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (and .cse1 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse9)) .cse7 .cse4 (= ULTIMATE.start_main_~q~0 4)) (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse10 .cse5 .cse2 .cse3 .cse6 .cse4)))))) [2020-11-30 00:47:13,556 INFO L274 CegarLoopResult]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,556 INFO L270 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (* ULTIMATE.start_main_~y~0 4)) (.cse0 (<= 1 ULTIMATE.start_main_~r~0)) (.cse2 (= ULTIMATE.start_main_~a~0 1)) (.cse7 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse1 (<= 1 ULTIMATE.start_main_~y~0)) (.cse10 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse11 (* ULTIMATE.start_main_~y~0 2)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 (= ULTIMATE.start_main_~b~0 .cse9) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse10 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 4) .cse6 .cse8) (and (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) (or (and .cse0 (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse2 .cse3 .cse6 .cse8) (and .cse0 .cse2 .cse10 .cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse9)) .cse8 (= ULTIMATE.start_main_~q~0 4)) (and .cse0 (= ULTIMATE.start_main_~q~0 2) .cse2 .cse10 .cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse11)) .cse8)) .cse7) (and .cse1 (= ULTIMATE.start_main_~a~0 2) .cse10 .cse4 (= ULTIMATE.start_main_~b~0 .cse11) .cse5 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse6 .cse8))) [2020-11-30 00:47:13,556 INFO L274 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,557 INFO L270 CegarLoopResult]: At program point L15-7(lines 14 20) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~a~0 1)) (.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (<= 1 ULTIMATE.start_main_~r~0)) (.cse1 (<= 1 ULTIMATE.start_main_~y~0)) (.cse9 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse5 (= ULTIMATE.start_main_~q~0 0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) .cse0 .cse2 (<= ULTIMATE.start_main_~r~0 5) .cse3 (<= 0 ULTIMATE.start_main_~x~0) .cse6 .cse7 .cse8) (and .cse0 .cse1 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 4)) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse9 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 4) .cse6 .cse8) (and .cse1 (= ULTIMATE.start_main_~a~0 2) .cse9 .cse4 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse5 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse6 .cse8))) [2020-11-30 00:47:13,557 INFO L274 CegarLoopResult]: For program point L15-8(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,557 INFO L270 CegarLoopResult]: At program point L15-9(lines 52 53) the Hoare annotation is: (let ((.cse1 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse0 (<= 1 ULTIMATE.start_main_~r~0)) (.cse2 (= ULTIMATE.start_main_~a~0 1)) (.cse8 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse7 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 4)) (<= (* 4 ULTIMATE.start_main_~y~0) 5) .cse8 .cse3 .cse4 (= ULTIMATE.start_main_~a~0 4) .cse5 .cse7) (and .cse1 (= ULTIMATE.start_main_~a~0 2) .cse8 .cse3 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse4 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0) .cse5 .cse7) (and (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0))) .cse2 (<= ULTIMATE.start_main_~r~0 5) .cse8 (<= 0 ULTIMATE.start_main_~x~0) .cse5 .cse6 .cse7))) [2020-11-30 00:47:13,557 INFO L274 CegarLoopResult]: For program point L15-10(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L270 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse1 (* 2 ULTIMATE.start_main_~b~0)) (.cse0 (<= 1 ULTIMATE.start_main_~y~0)) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse5 (<= ULTIMATE.start_main_~x~0 5))) (or (and .cse0 (= ULTIMATE.start_main_~a~0 1) (<= .cse1 ULTIMATE.start_main_~r~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse5) (and (<= 1 ULTIMATE.start_main_~r~0) (<= .cse1 5) .cse0 (= ULTIMATE.start_main_~a~0 2) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~y~0 2)) .cse3 .cse4 .cse5))) [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L277 CegarLoopResult]: At program point L15-13(lines 14 20) the Hoare annotation is: true [2020-11-30 00:47:13,558 INFO L277 CegarLoopResult]: At program point L65(lines 22 66) the Hoare annotation is: true [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,558 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,559 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,559 INFO L274 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,559 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-11-30 00:47:13,559 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:47:13,559 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-30 00:47:13,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:47:13 BoogieIcfgContainer [2020-11-30 00:47:13,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:47:13,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:47:13,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:47:13,615 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:47:13,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:31" (3/4) ... [2020-11-30 00:47:13,620 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:47:13,634 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-30 00:47:13,634 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:47:13,634 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:47:13,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:47:13,676 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1 <= y && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) && x <= 5) || ((r < 2 * b && ((((((((1 <= r && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 4) && x <= 5) && q == 4) || ((((((q == 1 && x == r + y) && a == 1) && 1 <= cond) && ((1 <= r && (\exists ULTIMATE.start_main_~q~0 : int :: 0 <= ULTIMATE.start_main_~q~0 * y && 2 * b + ULTIMATE.start_main_~q~0 * y <= 5)) || (1 <= r && 1 == cond))) && cond == 1) && x <= 5)) || ((((((1 <= r && q == 2) && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 2) && x <= 5))) && b == y)) || (((((((((1 <= r && 1 <= y) && b == y * 4) && 4 * y <= 5) && 1 <= cond) && r == x) && q == 0) && cond == 1) && a == 4) && x <= 5)) || ((((((((1 <= r && 1 <= y) && a == 1) && 1 <= cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) [2020-11-30 00:47:13,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6ebf3ece-19b4-44db-9c1f-d4bdf74a5515/bin/uautomizer/witness.graphml [2020-11-30 00:47:13,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:47:13,706 INFO L168 Benchmark]: Toolchain (without parser) took 43349.75 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 77.4 MB in the beginning and 36.3 MB in the end (delta: 41.1 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,707 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 79.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:47:13,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.53 ms. Allocated memory is still 96.5 MB. Free memory was 77.4 MB in the beginning and 70.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.55 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 68.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,708 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:47:13,709 INFO L168 Benchmark]: RCFGBuilder took 471.94 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 50.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,709 INFO L168 Benchmark]: TraceAbstraction took 42451.30 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 50.0 MB in the beginning and 40.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,710 INFO L168 Benchmark]: Witness Printer took 90.07 ms. Allocated memory is still 117.4 MB. Free memory was 40.5 MB in the beginning and 36.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:47:13,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 79.7 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.53 ms. Allocated memory is still 96.5 MB. Free memory was 77.4 MB in the beginning and 70.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.55 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 68.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 471.94 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 50.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 42451.30 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 50.0 MB in the beginning and 40.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. * Witness Printer took 90.07 ms. Allocated memory is still 117.4 MB. Free memory was 40.5 MB in the beginning and 36.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] * 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: ((((((((((1 <= r && 1 <= y) && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) || (((((((((1 <= r && 1 <= y) && b == y * 4) && 4 * y <= 5) && 1 <= cond) && r == x) && q == 0) && a == 4) && cond == 1) && x <= 5)) || ((r < 2 * b && ((((((((1 <= r && q == 1) && x == r + y) && a == 1) && 1 == cond) && cond == 1) && x <= 5) || ((((((1 <= r && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 4) && x <= 5) && q == 4)) || ((((((1 <= r && q == 2) && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 2) && x <= 5))) && b == y)) || ((((((((1 <= y && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) && x <= 5) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((((1 <= r && 1 <= y) && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) || (((((((((1 <= r && 1 <= y) && b == y * 4) && 4 * y <= 5) && 1 <= cond) && r == x) && q == 0) && a == 4) && cond == 1) && x <= 5)) || ((((((((1 <= y && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) && x <= 5)) || (((((((((r < 2 * b && 1 <= r) && x == r + q * y) && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y) && x <= 5) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((((1 <= y && 1 <= cond) && 0 <= x) && r == x) && q == 0) && cond == 1) && x <= 5) || (((((x == r + q * y && 1 == cond) && r < y) && b == y) && ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 0 <= x) && a == 4) && cond == 1) || (((((1 <= y && a == 1) && r <= 5) && 0 <= x) && cond == 1) && b == y)) || (((((1 <= y && r <= 5) && a == 2) && 0 <= x) && b == y * 2) && cond == 1))) && x <= 5)) || ((r + -2) / 2 + 1 < y && (((((((q == 2 && 1 <= cond) && x == r + y * 2) && ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 0 <= x) && a == 4) && cond == 1) || (((((1 <= y && a == 1) && r <= 5) && 0 <= x) && cond == 1) && b == y)) || (((((1 <= y && r <= 5) && a == 2) && 0 <= x) && b == y * 2) && cond == 1))) && x <= 5) && 2 * y <= x) || ((((1 <= cond && x == r + y * 4) && ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 0 <= x) && a == 4) && cond == 1) || (((((1 <= y && a == 1) && r <= 5) && 0 <= x) && cond == 1) && b == y)) || (((((1 <= y && r <= 5) && a == 2) && 0 <= x) && b == y * 2) && cond == 1))) && x <= 5) && q == 4)) || (((((((q == 1 && x == r + y) && a == 1) && 1 == cond) && 0 <= x) && cond == 1) && b == y) && x <= 5))) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant [2020-11-30 00:47:13,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] [2020-11-30 00:47:13,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0,QUANTIFIED] Derived loop invariant: ((((((((((1 <= y && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) && x <= 5) || ((r < 2 * b && ((((((((1 <= r && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 4) && x <= 5) && q == 4) || ((((((q == 1 && x == r + y) && a == 1) && 1 <= cond) && ((1 <= r && (\exists ULTIMATE.start_main_~q~0 : int :: 0 <= ULTIMATE.start_main_~q~0 * y && 2 * b + ULTIMATE.start_main_~q~0 * y <= 5)) || (1 <= r && 1 == cond))) && cond == 1) && x <= 5)) || ((((((1 <= r && q == 2) && a == 1) && 1 <= cond) && cond == 1) && x == r + y * 2) && x <= 5))) && b == y)) || (((((((((1 <= r && 1 <= y) && b == y * 4) && 4 * y <= 5) && 1 <= cond) && r == x) && q == 0) && cond == 1) && a == 4) && x <= 5)) || ((((((((1 <= r && 1 <= y) && a == 1) && 1 <= cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((1 <= r && 1 <= y) && a == 1) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) || (((((((((r < 2 * b && x == r + q * y) && 1 <= r) && a == 1) && r <= 5) && 1 == cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) || (((((((((1 <= r && 1 <= y) && b == y * 4) && 4 * y <= 5) && 1 <= cond) && r == x) && q == 0) && a == 4) && cond == 1) && x <= 5)) || ((((((((1 <= y && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && 2 * y <= r) && cond == 1) && x <= 5) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((q == 2 && (((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) && x <= 5) || (((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) || ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1) && x <= 5))) && x == r + y * 2) && 2 * y <= x) || (((((((q == 1 && x == r + y) && a == 1) && 1 == cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) || (((((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) && x <= 5) || (((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) || ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1) && x <= 5)) && x == r + y * 4) && q == 4)) && (r + -2) / 2 + 1 < y) || (((((1 <= y && 0 <= x) && r == x) && q == 0) && cond == 1) && x <= 5)) || ((((x == r + q * y && 1 == cond) && (((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) && x <= 5) || (((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) || ((((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1) && x <= 5))) && r < y) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((1 <= y && a == 1) && 2 * b <= r) && 1 == cond) && r == x) && q == 0) && cond == 1) && b == y) && x <= 5) || (((((((((1 <= r && 2 * b <= 5) && 1 <= y) && a == 2) && 1 <= cond) && r == x) && b == y * 2) && q == 0) && cond == 1) && x <= 5) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((1 <= y && 0 <= x) && a == 0) && r == x) && q == 0) && cond == 1) && x <= 5) && b == 0) || ((((((x == r + y * 4 && x <= 5) && q == 4) && ((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) || ((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y)) || (((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1))) || ((((q == 2 && x == r + y * 2) && x <= 5) && ((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) || ((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y)) || (((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1))) && 2 * y <= x)) || (((((((q == 1 && x == r + y) && a == 1) && 1 == cond) && 0 <= x) && cond == 1) && b == y) && x <= 5)) && (r + -2) / 2 + 1 < y)) || ((((x == r + q * y && r < y) && b == y) && x <= 5) && ((((((((1 <= y && r <= 5) && a == 2) && 1 <= cond) && 0 <= x) && b == y * 2) && cond == 1) || ((((((1 <= y && a == 1) && r <= 5) && 1 <= cond) && 0 <= x) && cond == 1) && b == y)) || (((((((1 <= y && b == y * 4) && 4 * y <= 5) && r <= 5) && 1 <= cond) && 0 <= x) && a == 4) && cond == 1))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.6s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 1286 SDslu, 915 SDs, 0 SdLazy, 1815 SolverSat, 335 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 495 GetRequests, 348 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 300 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 49 NumberOfFragments, 1743 HoareAnnotationTreeSize, 10 FomulaSimplifications, 24034 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 3251 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 445 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 431 ConstructedInterpolants, 7 QuantifiedInterpolants, 125758 SizeOfPredicates, 107 NumberOfNonLiveVariables, 1587 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 139/261 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...