./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC --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 ed46dd72b47544e751c43723d7d519a92e121aab ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:24:04,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:24:04,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:24:04,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:24:04,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:24:04,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:24:04,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:24:05,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:24:05,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:24:05,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:24:05,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:24:05,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:24:05,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:24:05,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:24:05,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:24:05,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:24:05,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:24:05,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:24:05,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:24:05,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:24:05,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:24:05,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:24:05,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:24:05,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:24:05,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:24:05,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:24:05,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:24:05,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:24:05,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:24:05,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:24:05,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:24:05,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:24:05,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:24:05,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:24:05,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:24:05,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:24:05,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:24:05,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:24:05,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:24:05,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:24:05,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:24:05,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:24:05,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:24:05,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:24:05,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:24:05,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:24:05,119 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:24:05,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:24:05,119 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:24:05,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:24:05,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:24:05,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:24:05,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:24:05,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:24:05,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:24:05,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:24:05,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:24:05,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:24:05,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:24:05,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:24:05,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:24:05,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:24:05,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:24:05,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:24:05,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:24:05,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:24:05,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:24:05,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:24:05,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:24:05,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:24:05,126 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_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed46dd72b47544e751c43723d7d519a92e121aab [2021-10-11 00:24:05,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:24:05,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:24:05,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:24:05,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:24:05,463 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:24:05,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-10-11 00:24:05,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/data/0ab14b480/e7733926d56f4552a0123b35929ebcd2/FLAG62cb981eb [2021-10-11 00:24:06,005 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:24:06,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-10-11 00:24:06,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/data/0ab14b480/e7733926d56f4552a0123b35929ebcd2/FLAG62cb981eb [2021-10-11 00:24:06,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/data/0ab14b480/e7733926d56f4552a0123b35929ebcd2 [2021-10-11 00:24:06,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:24:06,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:24:06,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:24:06,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:24:06,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:24:06,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7588a229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06, skipping insertion in model container [2021-10-11 00:24:06,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:24:06,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:24:06,564 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2021-10-11 00:24:06,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:24:06,615 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:24:06,628 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2021-10-11 00:24:06,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:24:06,669 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:24:06,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06 WrapperNode [2021-10-11 00:24:06,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:24:06,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:24:06,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:24:06,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:24:06,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:24:06,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:24:06,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:24:06,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:24:06,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... [2021-10-11 00:24:06,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:24:06,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:24:06,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:24:06,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:24:06,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:24:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:24:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:24:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:24:07,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:24:07,261 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-11 00:24:07,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:07 BoogieIcfgContainer [2021-10-11 00:24:07,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:24:07,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:24:07,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:24:07,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:24:07,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:24:06" (1/3) ... [2021-10-11 00:24:07,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1c24e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:24:07, skipping insertion in model container [2021-10-11 00:24:07,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:24:06" (2/3) ... [2021-10-11 00:24:07,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1c24e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:24:07, skipping insertion in model container [2021-10-11 00:24:07,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:07" (3/3) ... [2021-10-11 00:24:07,297 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound2.c [2021-10-11 00:24:07,325 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:24:07,331 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2021-10-11 00:24:07,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-11 00:24:07,386 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:24:07,389 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:24:07,389 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:24:07,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:24:07,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:24:07,390 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:24:07,391 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:24:07,391 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:24:07,412 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2021-10-11 00:24:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:24:07,427 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:07,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:07,428 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:07,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:07,434 INFO L82 PathProgramCache]: Analyzing trace with hash -578123657, now seen corresponding path program 1 times [2021-10-11 00:24:07,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:07,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671211139] [2021-10-11 00:24:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:07,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671211139] [2021-10-11 00:24:07,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:07,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:24:07,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484943958] [2021-10-11 00:24:07,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:24:07,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:07,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:24:07,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:24:07,607 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2021-10-11 00:24:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:07,625 INFO L93 Difference]: Finished difference Result 97 states and 128 transitions. [2021-10-11 00:24:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:24:07,627 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 00:24:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:07,637 INFO L225 Difference]: With dead ends: 97 [2021-10-11 00:24:07,637 INFO L226 Difference]: Without dead ends: 46 [2021-10-11 00:24:07,640 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 [2021-10-11 00:24:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-11 00:24:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-11 00:24:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-10-11 00:24:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-10-11 00:24:07,676 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 9 [2021-10-11 00:24:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:07,676 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-10-11 00:24:07,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:24:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-10-11 00:24:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:24:07,677 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:07,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:07,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:24:07,678 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:07,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1987056657, now seen corresponding path program 1 times [2021-10-11 00:24:07,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:07,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349851010] [2021-10-11 00:24:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:07,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349851010] [2021-10-11 00:24:07,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:07,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:24:07,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071502826] [2021-10-11 00:24:07,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:24:07,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:07,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:24:07,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:24:07,742 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 4 states. [2021-10-11 00:24:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:07,766 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-10-11 00:24:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:24:07,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 00:24:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:07,768 INFO L225 Difference]: With dead ends: 87 [2021-10-11 00:24:07,768 INFO L226 Difference]: Without dead ends: 48 [2021-10-11 00:24:07,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:24:07,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-11 00:24:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-11 00:24:07,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-10-11 00:24:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-10-11 00:24:07,777 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2021-10-11 00:24:07,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:07,778 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-10-11 00:24:07,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:24:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-10-11 00:24:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:24:07,779 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:07,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:07,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:24:07,779 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:07,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:07,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1420419469, now seen corresponding path program 1 times [2021-10-11 00:24:07,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:07,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269336606] [2021-10-11 00:24:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:08,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269336606] [2021-10-11 00:24:08,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:08,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:08,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354244539] [2021-10-11 00:24:08,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:08,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:08,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:08,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:08,088 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2021-10-11 00:24:25,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:25,977 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2021-10-11 00:24:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:25,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 00:24:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:25,979 INFO L225 Difference]: With dead ends: 74 [2021-10-11 00:24:25,979 INFO L226 Difference]: Without dead ends: 62 [2021-10-11 00:24:25,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:24:25,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-11 00:24:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-10-11 00:24:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 00:24:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2021-10-11 00:24:25,990 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 11 [2021-10-11 00:24:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:25,990 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2021-10-11 00:24:25,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:25,991 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2021-10-11 00:24:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:24:25,991 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:25,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:25,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:24:25,992 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:25,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1083313625, now seen corresponding path program 1 times [2021-10-11 00:24:25,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:25,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006236777] [2021-10-11 00:24:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:26,040 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:24:26,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292675778] [2021-10-11 00:24:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:26,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:24:26,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:26,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006236777] [2021-10-11 00:24:26,258 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:24:26,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292675778] [2021-10-11 00:24:26,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:26,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:24:26,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855783039] [2021-10-11 00:24:26,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:26,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:26,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:26,267 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 5 states. [2021-10-11 00:24:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:26,311 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-10-11 00:24:26,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:24:26,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 00:24:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:26,315 INFO L225 Difference]: With dead ends: 59 [2021-10-11 00:24:26,315 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 00:24:26,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 00:24:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-11 00:24:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-10-11 00:24:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2021-10-11 00:24:26,345 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2021-10-11 00:24:26,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:26,346 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2021-10-11 00:24:26,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2021-10-11 00:24:26,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:24:26,348 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:26,348 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:26,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:26,565 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:26,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:26,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2047013432, now seen corresponding path program 1 times [2021-10-11 00:24:26,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:26,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132860387] [2021-10-11 00:24:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:26,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:26,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132860387] [2021-10-11 00:24:26,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570765817] [2021-10-11 00:24:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:26,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:24:26,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:26,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:24:26,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-11 00:24:26,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233434723] [2021-10-11 00:24:26,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:26,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:26,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:26,766 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 5 states. [2021-10-11 00:24:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:26,825 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2021-10-11 00:24:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:26,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:24:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:26,826 INFO L225 Difference]: With dead ends: 95 [2021-10-11 00:24:26,827 INFO L226 Difference]: Without dead ends: 56 [2021-10-11 00:24:26,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-11 00:24:26,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-11 00:24:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 00:24:26,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-10-11 00:24:26,834 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2021-10-11 00:24:26,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:26,835 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-10-11 00:24:26,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-10-11 00:24:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:24:26,836 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:26,836 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:27,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:27,053 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:27,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:27,054 INFO L82 PathProgramCache]: Analyzing trace with hash -918298294, now seen corresponding path program 1 times [2021-10-11 00:24:27,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:27,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010803276] [2021-10-11 00:24:27,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:27,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010803276] [2021-10-11 00:24:27,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:27,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:27,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326480658] [2021-10-11 00:24:27,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:24:27,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:27,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:24:27,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:27,182 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 6 states. [2021-10-11 00:24:27,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:27,236 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-10-11 00:24:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:27,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-10-11 00:24:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:27,239 INFO L225 Difference]: With dead ends: 88 [2021-10-11 00:24:27,239 INFO L226 Difference]: Without dead ends: 49 [2021-10-11 00:24:27,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:24:27,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-11 00:24:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-11 00:24:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-10-11 00:24:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-10-11 00:24:27,256 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 14 [2021-10-11 00:24:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:27,256 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-10-11 00:24:27,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:24:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-10-11 00:24:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:24:27,258 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:27,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:27,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:24:27,258 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:27,260 INFO L82 PathProgramCache]: Analyzing trace with hash -966633767, now seen corresponding path program 1 times [2021-10-11 00:24:27,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:27,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985586583] [2021-10-11 00:24:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:27,283 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:24:27,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966044707] [2021-10-11 00:24:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:27,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:24:27,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:27,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985586583] [2021-10-11 00:24:27,480 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:24:27,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966044707] [2021-10-11 00:24:27,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:27,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:24:27,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675624427] [2021-10-11 00:24:27,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:24:27,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:27,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:24:27,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:27,482 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2021-10-11 00:24:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:29,894 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2021-10-11 00:24:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:29,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:24:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:29,896 INFO L225 Difference]: With dead ends: 71 [2021-10-11 00:24:29,896 INFO L226 Difference]: Without dead ends: 50 [2021-10-11 00:24:29,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:24:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-11 00:24:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-10-11 00:24:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-10-11 00:24:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2021-10-11 00:24:29,902 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 15 [2021-10-11 00:24:29,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:29,903 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2021-10-11 00:24:29,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:24:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2021-10-11 00:24:29,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:24:29,903 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:29,903 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:30,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:30,104 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:30,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1597540912, now seen corresponding path program 1 times [2021-10-11 00:24:30,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:30,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158749348] [2021-10-11 00:24:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:30,114 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:24:30,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927941815] [2021-10-11 00:24:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:30,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 00:24:30,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:24:30,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158749348] [2021-10-11 00:24:30,294 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:24:30,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927941815] [2021-10-11 00:24:30,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:30,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:24:30,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005251808] [2021-10-11 00:24:30,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:24:30,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:30,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:24:30,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:30,296 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 6 states. [2021-10-11 00:24:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:32,591 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2021-10-11 00:24:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:32,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:24:32,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:32,593 INFO L225 Difference]: With dead ends: 48 [2021-10-11 00:24:32,593 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 00:24:32,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:24:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 00:24:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2021-10-11 00:24:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 00:24:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-10-11 00:24:32,598 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 15 [2021-10-11 00:24:32,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:32,599 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-10-11 00:24:32,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:24:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-10-11 00:24:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:24:32,599 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:32,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:32,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:32,800 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:32,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1221957124, now seen corresponding path program 1 times [2021-10-11 00:24:32,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:24:32,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564916528] [2021-10-11 00:24:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:24:32,811 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:24:32,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671384437] [2021-10-11 00:24:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:24:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:32,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 00:24:32,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:33,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 00:24:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:33,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564916528] [2021-10-11 00:24:33,140 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:24:33,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671384437] [2021-10-11 00:24:33,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:33,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:24:33,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583450139] [2021-10-11 00:24:33,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:24:33,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:24:33,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:24:33,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:24:33,145 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 6 states. [2021-10-11 00:24:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:33,419 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-10-11 00:24:33,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:33,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:24:33,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:33,420 INFO L225 Difference]: With dead ends: 39 [2021-10-11 00:24:33,420 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:24:33,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:24:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:24:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:24:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:24:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:24:33,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 00:24:33,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:33,422 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:24:33,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:24:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:24:33,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:24:33,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:24:33,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:24:33,943 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2021-10-11 00:24:34,211 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2021-10-11 00:24:34,301 INFO L265 CegarLoopResult]: At program point L60(lines 20 61) the Hoare annotation is: true [2021-10-11 00:24:34,301 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,301 INFO L262 CegarLoopResult]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-11 00:24:34,301 INFO L262 CegarLoopResult]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2021-10-11 00:24:34,301 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L258 CegarLoopResult]: At program point L12-2(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L258 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L258 CegarLoopResult]: At program point L12-8(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,302 INFO L262 CegarLoopResult]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,302 INFO L258 CegarLoopResult]: At program point L12-11(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,303 INFO L262 CegarLoopResult]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,303 INFO L258 CegarLoopResult]: At program point L12-14(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,303 INFO L262 CegarLoopResult]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,303 INFO L258 CegarLoopResult]: At program point L12-17(lines 46 47) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 00:24:34,303 INFO L262 CegarLoopResult]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,303 INFO L258 CegarLoopResult]: At program point L12-20(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) (.cse1 (= ULTIMATE.start_main_~p~0 0))) (or (and (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) .cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) .cse1) (and (= ULTIMATE.start_main_~q~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) .cse0 (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) .cse1))) [2021-10-11 00:24:34,303 INFO L262 CegarLoopResult]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L258 CegarLoopResult]: At program point L12-23(lines 11 17) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse1 (= ULTIMATE.start_main_~p~0 0))) (or (and .cse0 (= ULTIMATE.start_main_~h~0 0) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 2 ~counter~0) .cse1) (and (= ULTIMATE.start_main_~q~0 1) .cse0 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) .cse1))) [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L265 CegarLoopResult]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,304 INFO L262 CegarLoopResult]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L38(lines 38 56) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L258 CegarLoopResult]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~h~0 0)) (.cse1 (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823)) (.cse2 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (= ULTIMATE.start_main_~p~0 0))) (or (and (<= 1 ~counter~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ULTIMATE.start_main_~q~0 1) .cse0 .cse1 .cse2 .cse3 (<= 0 ~counter~0) .cse4))) [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-11 00:24:34,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-11 00:24:34,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 00:24:34,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:24:34 BoogieIcfgContainer [2021-10-11 00:24:34,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:24:34,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:24:34,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:24:34,328 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:24:34,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:24:07" (3/4) ... [2021-10-11 00:24:34,332 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:24:34,344 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 00:24:34,344 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:24:34,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:24:34,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:24:34,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_765571ef-7e0e-4e77-8453-679536c916ce/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:24:34,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:24:34,402 INFO L168 Benchmark]: Toolchain (without parser) took 28041.15 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 57.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,402 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 81.8 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:24:34,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.36 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.0 MB in the beginning and 75.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.72 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 73.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,404 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:24:34,405 INFO L168 Benchmark]: RCFGBuilder took 486.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.9 MB in the beginning and 53.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,405 INFO L168 Benchmark]: TraceAbstraction took 27039.42 ms. Allocated memory is still 98.6 MB. Free memory was 77.9 MB in the beginning and 60.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,406 INFO L168 Benchmark]: Witness Printer took 73.18 ms. Allocated memory is still 98.6 MB. Free memory was 60.4 MB in the beginning and 57.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:34,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 81.8 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.36 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.0 MB in the beginning and 75.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.72 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 73.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 486.70 ms. Allocated memory is still 98.6 MB. Free memory was 71.9 MB in the beginning and 53.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27039.42 ms. Allocated memory is still 98.6 MB. Free memory was 77.9 MB in the beginning and 60.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.18 ms. Allocated memory is still 98.6 MB. Free memory was 60.4 MB in the beginning and 57.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && !(0 == cond)) && h == 0) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((!(0 == cond) && h == 0) && n % 4294967296 < 1073741823) && cond == 1) && 2 <= counter) && p == 0) || ((((q == 1 && !(0 == cond)) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && p == 0) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((1 <= counter && h == 0) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && p == 0) || ((((((q == 1 && h == 0) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 0 <= counter) && p == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((h == 0 && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0) || ((((q == 1 && !(0 == cond)) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && p == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((q == 1 && h == 0) && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && cond == 1) && 2 <= counter) && p == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.2s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 339 SDtfs, 386 SDslu, 499 SDs, 0 SdLazy, 223 SolverSat, 81 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 27 NumberOfFragments, 357 HoareAnnotationTreeSize, 11 FomulaSimplifications, 112 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 9997 SizeOfPredicates, 25 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/10 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...