./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:20:32,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:20:32,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:20:32,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:20:32,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:20:32,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:20:32,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:20:32,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:20:32,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:20:32,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:20:32,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:20:32,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:20:32,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:20:32,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:20:32,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:20:32,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:20:32,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:20:32,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:20:32,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:20:32,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:20:32,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:20:32,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:20:32,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:20:32,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:20:32,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:20:32,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:20:32,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:20:32,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:20:32,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:20:32,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:20:32,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:20:32,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:20:32,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:20:32,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:20:32,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:20:32,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:20:32,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:20:32,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:20:32,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:20:32,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:20:32,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:20:32,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-20 07:20:32,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:20:32,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:20:32,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:20:32,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:20:32,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:20:32,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:20:32,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:20:32,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:20:32,202 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:20:32,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:20:32,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:20:32,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:20:32,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:20:32,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:20:32,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:20:32,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:20:32,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:20:32,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:20:32,205 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 07:20:32,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:20:32,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:20:32,206 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:20:32,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:20:32,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:20:32,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:20:32,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:20:32,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:20:32,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:20:32,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:20:32,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:20:32,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:20:32,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:20:32,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:20:32,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:20:32,210 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_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2021-11-20 07:20:32,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:20:32,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:20:32,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:20:32,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:20:32,567 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:20:32,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2021-11-20 07:20:32,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/data/769da87e0/23dff2d4e37e47b0ba1c646672192597/FLAG769791c3e [2021-11-20 07:20:33,320 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:20:33,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2021-11-20 07:20:33,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/data/769da87e0/23dff2d4e37e47b0ba1c646672192597/FLAG769791c3e [2021-11-20 07:20:33,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/data/769da87e0/23dff2d4e37e47b0ba1c646672192597 [2021-11-20 07:20:33,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:20:33,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:20:33,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:20:33,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:20:33,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:20:33,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:20:33" (1/1) ... [2021-11-20 07:20:33,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8c8320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:33, skipping insertion in model container [2021-11-20 07:20:33,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:20:33" (1/1) ... [2021-11-20 07:20:33,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:20:33,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:20:34,200 WARN L230 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_ca878d9d-6370-4dfb-a216-9646cc8cf88e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2021-11-20 07:20:34,398 WARN L230 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_ca878d9d-6370-4dfb-a216-9646cc8cf88e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2021-11-20 07:20:34,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:20:34,432 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:20:34,462 WARN L230 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_ca878d9d-6370-4dfb-a216-9646cc8cf88e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2021-11-20 07:20:34,523 WARN L230 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_ca878d9d-6370-4dfb-a216-9646cc8cf88e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2021-11-20 07:20:34,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:20:34,579 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:20:34,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34 WrapperNode [2021-11-20 07:20:34,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:20:34,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:20:34,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:20:34,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:20:34,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,695 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2021-11-20 07:20:34,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:20:34,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:20:34,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:20:34,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:20:34,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:20:34,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:20:34,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:20:34,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:20:34,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (1/1) ... [2021-11-20 07:20:34,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:20:34,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:34,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:20:34,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:20:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:20:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 07:20:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 07:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:20:34,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 07:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:20:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:20:34,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:20:35,142 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:20:35,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:20:36,238 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:20:36,252 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:20:36,252 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 07:20:36,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:20:36 BoogieIcfgContainer [2021-11-20 07:20:36,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:20:36,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:20:36,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:20:36,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:20:36,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:20:33" (1/3) ... [2021-11-20 07:20:36,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfabd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:20:36, skipping insertion in model container [2021-11-20 07:20:36,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:20:34" (2/3) ... [2021-11-20 07:20:36,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfabd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:20:36, skipping insertion in model container [2021-11-20 07:20:36,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:20:36" (3/3) ... [2021-11-20 07:20:36,275 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2021-11-20 07:20:36,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:20:36,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-20 07:20:36,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:20:36,354 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:20:36,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-20 07:20:36,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 195 states have (on average 1.7025641025641025) internal successors, (332), 208 states have internal predecessors, (332), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 07:20:36,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:36,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:36,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:36,403 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2021-11-20 07:20:36,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:36,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622146792] [2021-11-20 07:20:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:36,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:36,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:36,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622146792] [2021-11-20 07:20:36,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622146792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:36,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:36,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:20:36,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679798180] [2021-11-20 07:20:36,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:36,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:20:36,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:36,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:20:36,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:20:36,663 INFO L87 Difference]: Start difference. First operand has 214 states, 195 states have (on average 1.7025641025641025) internal successors, (332), 208 states have internal predecessors, (332), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:36,748 INFO L93 Difference]: Finished difference Result 426 states and 699 transitions. [2021-11-20 07:20:36,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:20:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 07:20:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:36,771 INFO L225 Difference]: With dead ends: 426 [2021-11-20 07:20:36,772 INFO L226 Difference]: Without dead ends: 210 [2021-11-20 07:20:36,777 INFO L932 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 [2021-11-20 07:20:36,782 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:36,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:20:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-20 07:20:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-20 07:20:36,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 204 states have internal predecessors, (259), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 275 transitions. [2021-11-20 07:20:36,869 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 275 transitions. Word has length 7 [2021-11-20 07:20:36,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:36,870 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 275 transitions. [2021-11-20 07:20:36,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 275 transitions. [2021-11-20 07:20:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 07:20:36,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:36,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:36,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:20:36,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:36,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:36,876 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2021-11-20 07:20:36,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:36,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349952832] [2021-11-20 07:20:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:36,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:36,927 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:20:36,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735647997] [2021-11-20 07:20:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:36,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:36,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:20:36,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:20:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:37,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 07:20:37,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:20:37,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 07:20:37,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 07:20:37,260 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:20:37,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 07:20:37,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-20 07:20:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:37,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:20:37,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:37,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349952832] [2021-11-20 07:20:37,355 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:20:37,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735647997] [2021-11-20 07:20:37,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735647997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:37,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:37,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:20:37,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217856374] [2021-11-20 07:20:37,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:37,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:20:37,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:20:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:20:37,364 INFO L87 Difference]: Start difference. First operand 210 states and 275 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:38,218 INFO L93 Difference]: Finished difference Result 348 states and 463 transitions. [2021-11-20 07:20:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:20:38,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 07:20:38,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:38,222 INFO L225 Difference]: With dead ends: 348 [2021-11-20 07:20:38,223 INFO L226 Difference]: Without dead ends: 346 [2021-11-20 07:20:38,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:20:38,225 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 208 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:38,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 861 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:20:38,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-11-20 07:20:38,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 216. [2021-11-20 07:20:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 198 states have (on average 1.3434343434343434) internal successors, (266), 210 states have internal predecessors, (266), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:38,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2021-11-20 07:20:38,265 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 7 [2021-11-20 07:20:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:38,266 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2021-11-20 07:20:38,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2021-11-20 07:20:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:20:38,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:38,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:38,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:20:38,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:38,488 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -479642755, now seen corresponding path program 1 times [2021-11-20 07:20:38,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:38,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646912472] [2021-11-20 07:20:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:38,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:38,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:38,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646912472] [2021-11-20 07:20:38,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646912472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:38,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:38,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:20:38,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959140465] [2021-11-20 07:20:38,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:38,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:20:38,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:20:38,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:20:38,570 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:38,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:38,928 INFO L93 Difference]: Finished difference Result 420 states and 558 transitions. [2021-11-20 07:20:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:20:38,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 07:20:38,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:38,931 INFO L225 Difference]: With dead ends: 420 [2021-11-20 07:20:38,931 INFO L226 Difference]: Without dead ends: 312 [2021-11-20 07:20:38,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:20:38,934 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 119 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:38,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 716 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:20:38,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-20 07:20:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 216. [2021-11-20 07:20:38,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 210 states have internal predecessors, (265), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2021-11-20 07:20:38,956 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 10 [2021-11-20 07:20:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:38,956 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2021-11-20 07:20:38,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2021-11-20 07:20:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 07:20:38,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:38,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:38,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:20:38,964 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2021-11-20 07:20:38,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:38,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65084036] [2021-11-20 07:20:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:38,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:39,008 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:20:39,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484932803] [2021-11-20 07:20:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:39,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:39,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:39,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:20:39,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:20:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:39,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:20:39,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:20:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:39,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:20:39,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:39,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65084036] [2021-11-20 07:20:39,324 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:20:39,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484932803] [2021-11-20 07:20:39,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484932803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:39,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:39,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:20:39,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348083758] [2021-11-20 07:20:39,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:39,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:20:39,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:20:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:20:39,329 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:39,408 INFO L93 Difference]: Finished difference Result 445 states and 585 transitions. [2021-11-20 07:20:39,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:20:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-20 07:20:39,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:39,411 INFO L225 Difference]: With dead ends: 445 [2021-11-20 07:20:39,411 INFO L226 Difference]: Without dead ends: 237 [2021-11-20 07:20:39,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:20:39,418 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 9 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:39,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 495 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:20:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-20 07:20:39,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-11-20 07:20:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 218 states have (on average 1.3073394495412844) internal successors, (285), 230 states have internal predecessors, (285), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 301 transitions. [2021-11-20 07:20:39,433 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 301 transitions. Word has length 57 [2021-11-20 07:20:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:39,433 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 301 transitions. [2021-11-20 07:20:39,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:39,437 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 301 transitions. [2021-11-20 07:20:39,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 07:20:39,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:39,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:39,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:20:39,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:39,650 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2021-11-20 07:20:39,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:39,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042572710] [2021-11-20 07:20:39,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:39,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:39,672 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:20:39,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55121112] [2021-11-20 07:20:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:39,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:39,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:20:39,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:20:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:39,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:20:39,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:20:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:39,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:20:39,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:39,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042572710] [2021-11-20 07:20:39,963 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:20:39,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55121112] [2021-11-20 07:20:39,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55121112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:39,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:39,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:20:39,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364527322] [2021-11-20 07:20:39,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:39,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:20:39,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:20:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:20:39,965 INFO L87 Difference]: Start difference. First operand 236 states and 301 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:40,049 INFO L93 Difference]: Finished difference Result 454 states and 584 transitions. [2021-11-20 07:20:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:20:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-20 07:20:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:40,052 INFO L225 Difference]: With dead ends: 454 [2021-11-20 07:20:40,052 INFO L226 Difference]: Without dead ends: 226 [2021-11-20 07:20:40,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:20:40,054 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 240 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:40,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 527 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:20:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-20 07:20:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222. [2021-11-20 07:20:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 204 states have (on average 1.2941176470588236) internal successors, (264), 216 states have internal predecessors, (264), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 280 transitions. [2021-11-20 07:20:40,065 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 280 transitions. Word has length 57 [2021-11-20 07:20:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:40,065 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 280 transitions. [2021-11-20 07:20:40,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 280 transitions. [2021-11-20 07:20:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 07:20:40,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:40,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:40,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:20:40,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:40,276 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:40,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2021-11-20 07:20:40,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:40,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122169250] [2021-11-20 07:20:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:40,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:40,291 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:20:40,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155987222] [2021-11-20 07:20:40,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:40,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:40,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:40,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:20:40,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:20:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:40,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 07:20:40,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:20:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:40,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:20:40,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:40,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122169250] [2021-11-20 07:20:40,752 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:20:40,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155987222] [2021-11-20 07:20:40,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155987222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:40,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:40,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:20:40,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367491828] [2021-11-20 07:20:40,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:40,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:20:40,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:40,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:20:40,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:20:40,755 INFO L87 Difference]: Start difference. First operand 222 states and 280 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:20:40,848 INFO L93 Difference]: Finished difference Result 564 states and 718 transitions. [2021-11-20 07:20:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:20:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-20 07:20:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:20:40,851 INFO L225 Difference]: With dead ends: 564 [2021-11-20 07:20:40,851 INFO L226 Difference]: Without dead ends: 350 [2021-11-20 07:20:40,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:20:40,853 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 119 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:20:40,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 582 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:20:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-20 07:20:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 328. [2021-11-20 07:20:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 310 states have (on average 1.2838709677419355) internal successors, (398), 322 states have internal predecessors, (398), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:20:40,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 414 transitions. [2021-11-20 07:20:40,867 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 414 transitions. Word has length 57 [2021-11-20 07:20:40,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:20:40,867 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 414 transitions. [2021-11-20 07:20:40,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 414 transitions. [2021-11-20 07:20:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 07:20:40,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:20:40,869 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:40,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:20:41,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 07:20:41,094 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 07:20:41,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash -436973774, now seen corresponding path program 1 times [2021-11-20 07:20:41,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:41,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485196189] [2021-11-20 07:20:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:41,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:41,110 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:20:41,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020779112] [2021-11-20 07:20:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:41,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:41,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:20:41,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:20:41,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:20:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:41,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-20 07:20:41,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:20:41,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 07:20:41,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 07:20:41,400 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 07:20:41,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-20 07:20:41,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-11-20 07:20:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:41,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2021-11-20 07:20:42,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2021-11-20 07:20:42,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-20 07:20:42,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2021-11-20 07:20:42,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:42,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2021-11-20 07:20:42,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 07:20:42,856 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-20 07:20:42,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2021-11-20 07:20:42,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 07:20:43,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2021-11-20 07:20:43,015 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 07:20:43,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 24 [2021-11-20 07:20:44,496 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-20 07:20:44,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2822 treesize of output 2271 [2021-11-20 07:20:44,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:20:48,920 INFO L354 Elim1Store]: treesize reduction 6541, result has 4.0 percent of original size [2021-11-20 07:20:48,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 3291 treesize of output 1827 [2021-11-20 07:20:49,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:49,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485196189] [2021-11-20 07:20:49,001 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:20:49,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020779112] [2021-11-20 07:20:49,002 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-20 07:20:49,002 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:49,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-20 07:20:49,002 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-20 07:20:49,003 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-20 07:20:49,009 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-11-20 07:20:49,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-11-20 07:20:49,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-11-20 07:20:49,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-11-20 07:20:49,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-11-20 07:20:49,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-11-20 07:20:49,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-11-20 07:20:49,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-11-20 07:20:49,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:20:49,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:20:49,229 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:49,230 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:20:49,236 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-20 07:20:49,236 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-20 07:20:49,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:20:49 BoogieIcfgContainer [2021-11-20 07:20:49,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:20:49,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:20:49,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:20:49,259 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:20:49,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:20:36" (3/4) ... [2021-11-20 07:20:49,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:20:49,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:20:49,263 INFO L158 Benchmark]: Toolchain (without parser) took 15706.73ms. Allocated memory was 90.2MB in the beginning and 182.5MB in the end (delta: 92.3MB). Free memory was 52.0MB in the beginning and 47.3MB in the end (delta: 4.6MB). Peak memory consumption was 96.3MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,263 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 60.2MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:20:49,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1022.47ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.7MB in the beginning and 62.5MB in the end (delta: -10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.52ms. Allocated memory is still 111.1MB. Free memory was 62.5MB in the beginning and 55.7MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,265 INFO L158 Benchmark]: Boogie Preprocessor took 99.27ms. Allocated memory is still 111.1MB. Free memory was 55.7MB in the beginning and 48.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,265 INFO L158 Benchmark]: RCFGBuilder took 1459.25ms. Allocated memory is still 111.1MB. Free memory was 48.9MB in the beginning and 71.2MB in the end (delta: -22.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,265 INFO L158 Benchmark]: TraceAbstraction took 13000.62ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 70.6MB in the beginning and 48.2MB in the end (delta: 22.4MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2021-11-20 07:20:49,266 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 182.5MB. Free memory was 48.2MB in the beginning and 47.3MB in the end (delta: 830.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:20:49,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 60.2MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1022.47ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.7MB in the beginning and 62.5MB in the end (delta: -10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.52ms. Allocated memory is still 111.1MB. Free memory was 62.5MB in the beginning and 55.7MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.27ms. Allocated memory is still 111.1MB. Free memory was 55.7MB in the beginning and 48.9MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1459.25ms. Allocated memory is still 111.1MB. Free memory was 48.9MB in the beginning and 71.2MB in the end (delta: -22.3MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13000.62ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 70.6MB in the beginning and 48.2MB in the end (delta: 22.4MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 182.5MB. Free memory was 48.2MB in the beginning and 47.3MB in the end (delta: 830.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 735]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseXor at line 742, overapproximation of bitwiseAnd at line 742. Possible FailurePath: [L706] int count_int_int = 0; [L733] int i; [L734] example_user_t *user, *tmp, *users=((void *)0); [L735] i=0 [L735] EXPR \read(i) [L735] COND TRUE i<10 [L736] user = (example_user_t*)malloc(sizeof(example_user_t)) [L737] COND FALSE !(user == ((void *)0)) [L740] EXPR \read(i) [L740] user->id = i [L741] EXPR \read(i) [L741] EXPR \read(i) [L741] EXPR i*i [L741] user->cookie = i*i [L742] unsigned _ha_hashv; [L742] unsigned _hj_i,_hj_j,_hj_k; [L742] unsigned const char *_hj_key=(unsigned const char*)(&((user)->id)); [L742] _ha_hashv = 0xfeedbeefu [L742] EXPR _hj_j = 0x9e3779b9u [L742] _hj_i = _hj_j = 0x9e3779b9u [L742] _hj_k = (unsigned)(sizeof(int)) [L742] COND FALSE !(_hj_k >= 12U) [L742] _ha_hashv += (unsigned)(sizeof(int)) [L742] case 11: [L742] case 10: [L742] case 9: [L742] case 8: [L742] case 7: [L742] case 6: [L742] case 5: [L742] case 4: [L742] EXPR _hj_key[3] [L742] _hj_i += ( (unsigned)_hj_key[3] << 24 ) [L742] case 3: [L742] EXPR _hj_key[2] [L742] _hj_i += ( (unsigned)_hj_key[2] << 16 ) [L742] case 2: [L742] EXPR _hj_key[1] [L742] _hj_i += ( (unsigned)_hj_key[1] << 8 ) [L742] case 1: [L742] EXPR _hj_key[0] [L742] _hj_i += _hj_key[0] [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 13 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 8 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 13 ) [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 12 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 16 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 5 ) [L742] _hj_i -= _hj_j [L742] _hj_i -= _ha_hashv [L742] _hj_i ^= ( _ha_hashv >> 3 ) [L742] _hj_j -= _ha_hashv [L742] _hj_j -= _hj_i [L742] _hj_j ^= ( _hj_i << 10 ) [L742] _ha_hashv -= _hj_i [L742] _ha_hashv -= _hj_j [L742] _ha_hashv ^= ( _hj_j >> 15 ) [L742] (user)->hh.hashv = (_ha_hashv) [L742] (user)->hh.key = (char*) (&((user)->id)) [L742] (user)->hh.keylen = (unsigned) (sizeof(int)) [L742] COND TRUE !(users) [L742] (user)->hh.next = ((void *)0) [L742] (user)->hh.prev = ((void *)0) [L742] (user)->hh.tbl = (UT_hash_table*)malloc(sizeof(UT_hash_table)) [L742] EXPR (user)->hh.tbl [L742] COND FALSE !(!(user)->hh.tbl) [L742] EXPR (user)->hh.tbl [L742] FCALL memset((user)->hh.tbl,'\0',sizeof(UT_hash_table)) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->tail = &((user)->hh) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->num_buckets = 32U [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->log2_num_buckets = 5U [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->hho = (char*)(&(user)->hh) - (char*)(user) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->buckets = (UT_hash_bucket*)malloc(32U * sizeof(struct UT_hash_bucket)) [L742] EXPR (user)->hh.tbl [L742] (user)->hh.tbl->signature = 0xa0111fe1u [L742] EXPR (user)->hh.tbl [L742] EXPR (user)->hh.tbl->buckets [L742] COND FALSE !(!(user)->hh.tbl->buckets) [L742] EXPR (user)->hh.tbl [L742] EXPR (user)->hh.tbl->buckets [L742] FCALL memset((user)->hh.tbl->buckets,'\0',32U * sizeof(struct UT_hash_bucket)) [L742] (users) = (user) [L742] unsigned _ha_bkt; [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->num_items [L742] (users)->hh.tbl->num_items++ [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->num_buckets [L742] _ha_bkt = ((_ha_hashv) & (((users)->hh.tbl->num_buckets) - 1U)) [L742] EXPR (users)->hh.tbl [L742] EXPR (users)->hh.tbl->buckets [L742] UT_hash_bucket *_ha_head = &((users)->hh.tbl->buckets[_ha_bkt]); [L742] EXPR _ha_head->count [L742] _ha_head->count++ [L742] EXPR _ha_head->hh_head [L742] (&(user)->hh)->hh_next = _ha_head->hh_head [L742] (&(user)->hh)->hh_prev = ((void *)0) [L742] EXPR _ha_head->hh_head [L742] COND FALSE !(_ha_head->hh_head != ((void *)0)) [L742] _ha_head->hh_head = (&(user)->hh) [L742] EXPR _ha_head->count [L742] EXPR _ha_head->expand_mult [L742] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L742] EXPR (&(user)->hh)->tbl [L742] EXPR (&(user)->hh)->tbl->noexpand [L742] (_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand [L742] COND FALSE !((_ha_head->count >= ((_ha_head->expand_mult + 1U) * 10U)) && !(&(user)->hh)->tbl->noexpand) [L735] EXPR \read(i) [L735] i++ - UnprovableResult [Line: 741]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 214 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 720 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 3460 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1827 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 1633 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 253 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 6 NumberOfNonLiveVariables, 909 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:20:49,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca878d9d-6370-4dfb-a216-9646cc8cf88e/bin/uautomizer-DQz5hQGWxF/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN