./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa --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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:40:59,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:40:59,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:40:59,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:40:59,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:40:59,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:40:59,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:40:59,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:40:59,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:40:59,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:40:59,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:40:59,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:40:59,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:40:59,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:40:59,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:40:59,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:40:59,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:40:59,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:40:59,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:40:59,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:40:59,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:40:59,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:40:59,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:40:59,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:40:59,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:40:59,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:40:59,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:40:59,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:40:59,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:40:59,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:40:59,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:40:59,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:40:59,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:40:59,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:40:59,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:40:59,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:40:59,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:40:59,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:40:59,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:40:59,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:40:59,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:40:59,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-06 21:40:59,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:40:59,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:40:59,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:40:59,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:40:59,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:40:59,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:40:59,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:40:59,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:40:59,906 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:40:59,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:40:59,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:40:59,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:40:59,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:40:59,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:40:59,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:40:59,909 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2021-12-06 21:41:00,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:41:00,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:41:00,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:41:00,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:41:00,100 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:41:00,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2021-12-06 21:41:00,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/data/169abe765/5a4d859b46e847919d878566bcaa14b2/FLAG319734a13 [2021-12-06 21:41:00,601 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:41:00,601 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2021-12-06 21:41:00,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/data/169abe765/5a4d859b46e847919d878566bcaa14b2/FLAG319734a13 [2021-12-06 21:41:00,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/data/169abe765/5a4d859b46e847919d878566bcaa14b2 [2021-12-06 21:41:00,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:41:00,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:41:00,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:41:00,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:41:00,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:41:00,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:41:00" (1/1) ... [2021-12-06 21:41:00,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b55c2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:00, skipping insertion in model container [2021-12-06 21:41:00,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:41:00" (1/1) ... [2021-12-06 21:41:00,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:41:00,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:41:00,969 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2021-12-06 21:41:01,052 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2021-12-06 21:41:01,053 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2021-12-06 21:41:01,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:41:01,073 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:41:01,098 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2021-12-06 21:41:01,145 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2021-12-06 21:41:01,146 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_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2021-12-06 21:41:01,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:41:01,191 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:41:01,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01 WrapperNode [2021-12-06 21:41:01,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:41:01,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:41:01,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:41:01,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:41:01,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,278 INFO L137 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1157 [2021-12-06 21:41:01,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:41:01,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:41:01,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:41:01,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:41:01,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:41:01,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:41:01,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:41:01,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:41:01,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (1/1) ... [2021-12-06 21:41:01,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:41:01,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:01,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:41:01,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:41:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 21:41:01,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:41:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:41:01,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:41:01,547 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:41:01,548 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:41:02,205 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:41:02,212 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:41:02,212 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-12-06 21:41:02,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:41:02 BoogieIcfgContainer [2021-12-06 21:41:02,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:41:02,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:41:02,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:41:02,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:41:02,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:41:00" (1/3) ... [2021-12-06 21:41:02,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549b5b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:41:02, skipping insertion in model container [2021-12-06 21:41:02,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:41:01" (2/3) ... [2021-12-06 21:41:02,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549b5b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:41:02, skipping insertion in model container [2021-12-06 21:41:02,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:41:02" (3/3) ... [2021-12-06 21:41:02,220 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2021-12-06 21:41:02,224 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:41:02,224 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-06 21:41:02,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:41:02,268 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 [2021-12-06 21:41:02,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-06 21:41:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 212 states have (on average 1.7028301886792452) internal successors, (361), 218 states have internal predecessors, (361), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 21:41:02,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:02,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:41:02,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2021-12-06 21:41:02,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:02,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483363552] [2021-12-06 21:41:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:02,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:02,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:02,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483363552] [2021-12-06 21:41:02,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483363552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:02,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:02,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:41:02,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251448425] [2021-12-06 21:41:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:02,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:41:02,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:41:02,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:41:02,453 INFO L87 Difference]: Start difference. First operand has 223 states, 212 states have (on average 1.7028301886792452) internal successors, (361), 218 states have internal predecessors, (361), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2021-12-06 21:41:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:02,489 INFO L93 Difference]: Finished difference Result 443 states and 731 transitions. [2021-12-06 21:41:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:41:02,491 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 [2021-12-06 21:41:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:02,498 INFO L225 Difference]: With dead ends: 443 [2021-12-06 21:41:02,498 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 21:41:02,502 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 [2021-12-06 21:41:02,504 INFO L933 BasicCegarLoop]: 288 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, 288 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 [2021-12-06 21:41:02,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:41:02,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 21:41:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-12-06 21:41:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 177 states have (on average 1.3333333333333333) internal successors, (236), 182 states have internal predecessors, (236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2021-12-06 21:41:02,545 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 7 [2021-12-06 21:41:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:02,545 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2021-12-06 21:41:02,545 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) [2021-12-06 21:41:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2021-12-06 21:41:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 21:41:02,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:02,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:41:02,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:41:02,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:02,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:02,547 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2021-12-06 21:41:02,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:02,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355649306] [2021-12-06 21:41:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:02,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:02,574 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:41:02,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442136066] [2021-12-06 21:41:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:02,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:02,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:41:02,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 21:41:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:02,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 21:41:02,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:41:02,728 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 [2021-12-06 21:41:02,733 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 [2021-12-06 21:41:02,765 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 21:41:02,765 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 [2021-12-06 21:41:02,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 21:41:02,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 10 [2021-12-06 21:41:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:02,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:41:02,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355649306] [2021-12-06 21:41:02,825 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:41:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442136066] [2021-12-06 21:41:02,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442136066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:02,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:02,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 21:41:02,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305943423] [2021-12-06 21:41:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:02,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 21:41:02,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 21:41:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:41:02,828 INFO L87 Difference]: Start difference. First operand 187 states and 242 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) [2021-12-06 21:41:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:03,371 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2021-12-06 21:41:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 21:41:03,372 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 [2021-12-06 21:41:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:03,376 INFO L225 Difference]: With dead ends: 306 [2021-12-06 21:41:03,376 INFO L226 Difference]: Without dead ends: 304 [2021-12-06 21:41:03,377 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 [2021-12-06 21:41:03,378 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 188 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 21:41:03,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 735 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 21:41:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-12-06 21:41:03,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 193. [2021-12-06 21:41:03,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3278688524590163) internal successors, (243), 188 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2021-12-06 21:41:03,394 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 7 [2021-12-06 21:41:03,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:03,395 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2021-12-06 21:41:03,395 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) [2021-12-06 21:41:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2021-12-06 21:41:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 21:41:03,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:03,397 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] [2021-12-06 21:41:03,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:41:03,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:03,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash -385089840, now seen corresponding path program 1 times [2021-12-06 21:41:03,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:03,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717434230] [2021-12-06 21:41:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:03,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:03,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:03,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717434230] [2021-12-06 21:41:03,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717434230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:03,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:03,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 21:41:03,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944373805] [2021-12-06 21:41:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:03,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:41:03,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:41:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:41:03,682 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-12-06 21:41:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:03,898 INFO L93 Difference]: Finished difference Result 355 states and 462 transitions. [2021-12-06 21:41:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:41:03,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-12-06 21:41:03,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:03,900 INFO L225 Difference]: With dead ends: 355 [2021-12-06 21:41:03,900 INFO L226 Difference]: Without dead ends: 270 [2021-12-06 21:41:03,900 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 [2021-12-06 21:41:03,901 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 99 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 21:41:03,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 615 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 21:41:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-06 21:41:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 193. [2021-12-06 21:41:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 188 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 248 transitions. [2021-12-06 21:41:03,911 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 248 transitions. Word has length 50 [2021-12-06 21:41:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:03,912 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 248 transitions. [2021-12-06 21:41:03,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-12-06 21:41:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 248 transitions. [2021-12-06 21:41:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 21:41:03,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:03,913 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] [2021-12-06 21:41:03,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:41:03,914 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2021-12-06 21:41:03,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:03,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531531474] [2021-12-06 21:41:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:03,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:03,983 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:41:03,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023355713] [2021-12-06 21:41:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:03,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:03,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:03,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:41:03,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 21:41:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:04,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:41:04,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:41:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:04,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:41:04,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:04,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531531474] [2021-12-06 21:41:04,368 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:41:04,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023355713] [2021-12-06 21:41:04,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023355713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:04,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:04,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:41:04,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977521547] [2021-12-06 21:41:04,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:04,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:41:04,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:41:04,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:41:04,370 INFO L87 Difference]: Start difference. First operand 193 states and 248 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) [2021-12-06 21:41:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:04,411 INFO L93 Difference]: Finished difference Result 399 states and 519 transitions. [2021-12-06 21:41:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:41:04,412 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 [2021-12-06 21:41:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:04,413 INFO L225 Difference]: With dead ends: 399 [2021-12-06 21:41:04,413 INFO L226 Difference]: Without dead ends: 214 [2021-12-06 21:41:04,414 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 [2021-12-06 21:41:04,414 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 9 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:41:04,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:41:04,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-12-06 21:41:04,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2021-12-06 21:41:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.29064039408867) internal successors, (262), 208 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 268 transitions. [2021-12-06 21:41:04,423 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 268 transitions. Word has length 57 [2021-12-06 21:41:04,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:04,423 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 268 transitions. [2021-12-06 21:41:04,423 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) [2021-12-06 21:41:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 268 transitions. [2021-12-06 21:41:04,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 21:41:04,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:04,425 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] [2021-12-06 21:41:04,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 21:41:04,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:04,627 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:04,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:04,629 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2021-12-06 21:41:04,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:04,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042470391] [2021-12-06 21:41:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:04,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:04,814 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:41:04,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [924584951] [2021-12-06 21:41:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:04,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:04,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:04,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:41:04,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 21:41:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:05,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 21:41:05,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:41:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:05,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:41:05,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042470391] [2021-12-06 21:41:05,237 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:41:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924584951] [2021-12-06 21:41:05,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924584951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:05,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:05,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 21:41:05,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033476423] [2021-12-06 21:41:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:05,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:41:05,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:41:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:41:05,238 INFO L87 Difference]: Start difference. First operand 213 states and 268 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) [2021-12-06 21:41:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:05,277 INFO L93 Difference]: Finished difference Result 408 states and 518 transitions. [2021-12-06 21:41:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:41:05,278 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 [2021-12-06 21:41:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:05,279 INFO L225 Difference]: With dead ends: 408 [2021-12-06 21:41:05,279 INFO L226 Difference]: Without dead ends: 203 [2021-12-06 21:41:05,279 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 [2021-12-06 21:41:05,280 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 220 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:41:05,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 453 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:41:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-06 21:41:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-12-06 21:41:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 194 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:05,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 247 transitions. [2021-12-06 21:41:05,287 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 247 transitions. Word has length 57 [2021-12-06 21:41:05,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:05,287 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 247 transitions. [2021-12-06 21:41:05,287 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) [2021-12-06 21:41:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 247 transitions. [2021-12-06 21:41:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 21:41:05,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:05,289 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] [2021-12-06 21:41:05,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 21:41:05,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:05,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2021-12-06 21:41:05,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:05,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373640591] [2021-12-06 21:41:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:05,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:05,575 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:41:05,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196588641] [2021-12-06 21:41:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:05,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:05,577 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:41:05,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 21:41:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:05,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 21:41:05,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:41:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:41:06,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:41:06,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:41:06,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373640591] [2021-12-06 21:41:06,072 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 21:41:06,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196588641] [2021-12-06 21:41:06,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196588641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:41:06,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:41:06,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:41:06,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980145185] [2021-12-06 21:41:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:41:06,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:41:06,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:41:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:41:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:41:06,074 INFO L87 Difference]: Start difference. First operand 199 states and 247 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) [2021-12-06 21:41:06,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:41:06,138 INFO L93 Difference]: Finished difference Result 499 states and 622 transitions. [2021-12-06 21:41:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:41:06,138 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 [2021-12-06 21:41:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:41:06,140 INFO L225 Difference]: With dead ends: 499 [2021-12-06 21:41:06,140 INFO L226 Difference]: Without dead ends: 308 [2021-12-06 21:41:06,140 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 [2021-12-06 21:41:06,141 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 99 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 21:41:06,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 483 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 21:41:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-12-06 21:41:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 305. [2021-12-06 21:41:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 300 states have internal predecessors, (374), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 21:41:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 380 transitions. [2021-12-06 21:41:06,149 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 380 transitions. Word has length 57 [2021-12-06 21:41:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:41:06,150 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 380 transitions. [2021-12-06 21:41:06,150 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) [2021-12-06 21:41:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 380 transitions. [2021-12-06 21:41:06,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-06 21:41:06,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:41:06,152 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] [2021-12-06 21:41:06,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 21:41:06,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-06 21:41:06,354 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-06 21:41:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:41:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1664289550, now seen corresponding path program 1 times [2021-12-06 21:41:06,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:41:06,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569770500] [2021-12-06 21:41:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:06,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:41:06,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 21:41:06,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318564239] [2021-12-06 21:41:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:41:06,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:41:06,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:41:06,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:41:06,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fe37a2-0f5b-43b8-9095-0526cca5f6bb/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 21:41:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:41:06,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 127 conjunts are in the unsatisfiable core [2021-12-06 21:41:06,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:41:06,699 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 [2021-12-06 21:41:06,704 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 [2021-12-06 21:41:06,738 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 21:41:06,738 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 [2021-12-06 21:41:06,777 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 14 treesize of output 16 [2021-12-06 21:41:06,800 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 14 treesize of output 16 [2021-12-06 21:41:07,127 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 14 treesize of output 16 [2021-12-06 21:41:07,143 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 14 treesize of output 16 [2021-12-06 21:41:07,164 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 14 treesize of output 16 [2021-12-06 21:41:07,169 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 [2021-12-06 21:41:07,179 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-12-06 21:41:07,179 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 [2021-12-06 21:41:07,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-06 21:41:18,990 INFO L244 Elim1Store]: Index analysis took 579 ms