./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:07:49,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:07:49,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:07:49,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:07:49,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:07:49,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:07:49,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:07:49,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:07:49,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:07:49,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:07:49,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:07:49,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:07:49,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:07:49,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:07:49,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:07:49,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:07:49,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:07:49,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:07:49,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:07:49,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:07:49,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:07:49,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:07:49,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:07:49,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:07:49,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:07:49,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:07:49,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:07:49,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:07:49,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:07:49,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:07:49,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:07:49,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:07:49,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:07:49,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:07:49,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:07:49,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:07:49,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:07:49,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:07:49,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:07:49,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:07:49,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:07:49,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 14:07:50,047 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:07:50,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:07:50,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:07:50,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:07:50,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:07:50,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:07:50,057 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:07:50,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:07:50,058 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:07:50,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:07:50,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:07:50,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:07:50,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:07:50,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:07:50,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:07:50,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:07:50,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:07:50,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:07:50,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:07:50,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:07:50,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:07:50,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:07:50,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:50,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:07:50,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:07:50,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:07:50,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:07:50,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:07:50,070 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:07:50,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:07:50,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:07:50,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:07:50,071 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2021-11-23 14:07:50,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:07:50,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:07:50,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:07:50,376 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:07:50,377 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:07:50,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-23 14:07:50,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/data/dbd67ca68/a49645d5de9641c39c88b079c25ea96b/FLAGc7a26caef [2021-11-23 14:07:51,036 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:07:51,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2021-11-23 14:07:51,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/data/dbd67ca68/a49645d5de9641c39c88b079c25ea96b/FLAGc7a26caef [2021-11-23 14:07:51,281 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/data/dbd67ca68/a49645d5de9641c39c88b079c25ea96b [2021-11-23 14:07:51,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:07:51,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:07:51,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:51,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:07:51,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:07:51,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:51" (1/1) ... [2021-11-23 14:07:51,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28717415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:51, skipping insertion in model container [2021-11-23 14:07:51,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:51" (1/1) ... [2021-11-23 14:07:51,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:07:51,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:07:51,831 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-23 14:07:51,961 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-23 14:07:51,962 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-23 14:07:51,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:51,987 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:07:52,015 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[33021,33034] [2021-11-23 14:07:52,089 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44124,44137] [2021-11-23 14:07:52,090 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_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i[44245,44258] [2021-11-23 14:07:52,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:52,144 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:07:52,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52 WrapperNode [2021-11-23 14:07:52,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:52,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:52,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:07:52,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:07:52,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,278 INFO L137 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 1166 [2021-11-23 14:07:52,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:52,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:07:52,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:07:52,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:07:52,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:07:52,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:07:52,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:07:52,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:07:52,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (1/1) ... [2021-11-23 14:07:52,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:52,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:07:52,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:07:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:07:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:07:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:07:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:07:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:07:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:07:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 14:07:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:07:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:07:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:07:52,753 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:07:52,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:07:53,804 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:07:53,814 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:07:53,815 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 14:07:53,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:53 BoogieIcfgContainer [2021-11-23 14:07:53,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:07:53,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:07:53,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:07:53,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:07:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:51" (1/3) ... [2021-11-23 14:07:53,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dab324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:53, skipping insertion in model container [2021-11-23 14:07:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:52" (2/3) ... [2021-11-23 14:07:53,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dab324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:53, skipping insertion in model container [2021-11-23 14:07:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:53" (3/3) ... [2021-11-23 14:07:53,826 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-2.i [2021-11-23 14:07:53,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:07:53,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 14:07:53,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:53,914 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=PETRI_NET, 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 [2021-11-23 14:07:53,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 14:07:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 211 states, 208 states have (on average 1.7067307692307692) internal successors, (355), 210 states have internal predecessors, (355), 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) [2021-11-23 14:07:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 14:07:53,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:53,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:53,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:53,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1366407864, now seen corresponding path program 1 times [2021-11-23 14:07:53,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:53,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932522504] [2021-11-23 14:07:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:53,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:54,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:54,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932522504] [2021-11-23 14:07:54,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932522504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:54,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:54,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:07:54,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204083245] [2021-11-23 14:07:54,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:54,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:07:54,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:07:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:07:54,182 INFO L87 Difference]: Start difference. First operand has 211 states, 208 states have (on average 1.7067307692307692) internal successors, (355), 210 states have internal predecessors, (355), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 14:07:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:54,240 INFO L93 Difference]: Finished difference Result 419 states and 707 transitions. [2021-11-23 14:07:54,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:07:54,242 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 14:07:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:54,261 INFO L225 Difference]: With dead ends: 419 [2021-11-23 14:07:54,262 INFO L226 Difference]: Without dead ends: 177 [2021-11-23 14:07:54,267 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 [2021-11-23 14:07:54,271 INFO L933 BasicCegarLoop]: 276 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, 276 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 [2021-11-23 14:07:54,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:07:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-23 14:07:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-11-23 14:07:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.3257142857142856) internal successors, (232), 176 states have internal predecessors, (232), 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) [2021-11-23 14:07:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2021-11-23 14:07:54,343 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 8 [2021-11-23 14:07:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:54,344 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2021-11-23 14:07:54,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 14:07:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2021-11-23 14:07:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 14:07:54,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:54,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:54,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:07:54,346 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1136278917, now seen corresponding path program 1 times [2021-11-23 14:07:54,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:54,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395501244] [2021-11-23 14:07:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:54,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:54,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395501244] [2021-11-23 14:07:54,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395501244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:54,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:54,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:07:54,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135734636] [2021-11-23 14:07:54,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:54,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:07:54,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:07:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:07:54,422 INFO L87 Difference]: Start difference. First operand 177 states and 232 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) [2021-11-23 14:07:54,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:54,951 INFO L93 Difference]: Finished difference Result 382 states and 501 transitions. [2021-11-23 14:07:54,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:07:54,952 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 [2021-11-23 14:07:54,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:54,955 INFO L225 Difference]: With dead ends: 382 [2021-11-23 14:07:54,955 INFO L226 Difference]: Without dead ends: 295 [2021-11-23 14:07:54,956 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 [2021-11-23 14:07:54,958 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 146 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 14:07:54,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 564 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 14:07:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-23 14:07:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 179. [2021-11-23 14:07:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.3220338983050848) internal successors, (234), 178 states have internal predecessors, (234), 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) [2021-11-23 14:07:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 234 transitions. [2021-11-23 14:07:54,981 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 234 transitions. Word has length 10 [2021-11-23 14:07:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:54,981 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 234 transitions. [2021-11-23 14:07:54,982 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) [2021-11-23 14:07:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2021-11-23 14:07:54,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:07:54,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:54,985 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:54,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:07:54,985 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:54,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:54,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2095912151, now seen corresponding path program 1 times [2021-11-23 14:07:54,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:54,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092633074] [2021-11-23 14:07:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:54,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:55,012 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:55,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667597861] [2021-11-23 14:07:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:55,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:55,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:55,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:55,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 14:07:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:55,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:55,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:55,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:55,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092633074] [2021-11-23 14:07:55,498 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:55,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667597861] [2021-11-23 14:07:55,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667597861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:55,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:55,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:07:55,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507652396] [2021-11-23 14:07:55,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:55,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:07:55,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:07:55,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:55,501 INFO L87 Difference]: Start difference. First operand 179 states and 234 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-23 14:07:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:55,582 INFO L93 Difference]: Finished difference Result 375 states and 495 transitions. [2021-11-23 14:07:55,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:07:55,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-23 14:07:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:55,587 INFO L225 Difference]: With dead ends: 375 [2021-11-23 14:07:55,587 INFO L226 Difference]: Without dead ends: 200 [2021-11-23 14:07:55,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:55,594 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 9 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 409 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 [2021-11-23 14:07:55,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 409 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:07:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-23 14:07:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2021-11-23 14:07:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.2893401015228427) internal successors, (254), 198 states have internal predecessors, (254), 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) [2021-11-23 14:07:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 254 transitions. [2021-11-23 14:07:55,618 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 254 transitions. Word has length 62 [2021-11-23 14:07:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:55,618 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 254 transitions. [2021-11-23 14:07:55,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-23 14:07:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 254 transitions. [2021-11-23 14:07:55,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:07:55,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:55,634 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:55,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:55,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:55,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1305568807, now seen corresponding path program 1 times [2021-11-23 14:07:55,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:55,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738515573] [2021-11-23 14:07:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:55,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:55,892 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:55,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870686049] [2021-11-23 14:07:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:55,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:55,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:55,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:55,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:07:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:56,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:56,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:56,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:56,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:56,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738515573] [2021-11-23 14:07:56,263 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:56,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870686049] [2021-11-23 14:07:56,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870686049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:56,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:56,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:07:56,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259566187] [2021-11-23 14:07:56,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:56,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:07:56,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:56,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:07:56,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:07:56,272 INFO L87 Difference]: Start difference. First operand 199 states and 254 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2021-11-23 14:07:56,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:56,360 INFO L93 Difference]: Finished difference Result 386 states and 496 transitions. [2021-11-23 14:07:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:07:56,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2021-11-23 14:07:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:56,362 INFO L225 Difference]: With dead ends: 386 [2021-11-23 14:07:56,362 INFO L226 Difference]: Without dead ends: 191 [2021-11-23 14:07:56,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:07:56,367 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 220 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 420 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 [2021-11-23 14:07:56,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 420 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:07:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-23 14:07:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 185. [2021-11-23 14:07:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 183 states have (on average 1.273224043715847) internal successors, (233), 184 states have internal predecessors, (233), 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) [2021-11-23 14:07:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 233 transitions. [2021-11-23 14:07:56,394 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 233 transitions. Word has length 62 [2021-11-23 14:07:56,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:56,394 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 233 transitions. [2021-11-23 14:07:56,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2021-11-23 14:07:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 233 transitions. [2021-11-23 14:07:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 14:07:56,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:56,396 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:56,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:56,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:56,624 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1777715509, now seen corresponding path program 1 times [2021-11-23 14:07:56,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:56,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888713785] [2021-11-23 14:07:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:56,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:56,657 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:56,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161914561] [2021-11-23 14:07:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:56,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:56,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:56,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:56,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:07:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:56,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:07:56,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:57,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:57,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:57,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888713785] [2021-11-23 14:07:57,146 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:57,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161914561] [2021-11-23 14:07:57,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161914561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:57,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:57,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:07:57,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514912799] [2021-11-23 14:07:57,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:57,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:07:57,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:57,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:07:57,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:57,148 INFO L87 Difference]: Start difference. First operand 185 states and 233 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-23 14:07:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:57,252 INFO L93 Difference]: Finished difference Result 479 states and 602 transitions. [2021-11-23 14:07:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:07:57,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-23 14:07:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:57,255 INFO L225 Difference]: With dead ends: 479 [2021-11-23 14:07:57,255 INFO L226 Difference]: Without dead ends: 298 [2021-11-23 14:07:57,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:57,256 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 105 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 463 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 [2021-11-23 14:07:57,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 463 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:07:57,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-23 14:07:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 291. [2021-11-23 14:07:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 289 states have (on average 1.2664359861591696) internal successors, (366), 290 states have internal predecessors, (366), 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) [2021-11-23 14:07:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2021-11-23 14:07:57,268 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 62 [2021-11-23 14:07:57,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:57,270 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2021-11-23 14:07:57,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-23 14:07:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2021-11-23 14:07:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 14:07:57,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:57,273 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:57,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:57,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:57,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:57,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1300403396, now seen corresponding path program 1 times [2021-11-23 14:07:57,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:57,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116593688] [2021-11-23 14:07:57,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:57,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:57,517 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:57,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582689436] [2021-11-23 14:07:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:57,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:57,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:57,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:07:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:57,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:57,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:57,849 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 [2021-11-23 14:07:57,869 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 15 treesize of output 7 [2021-11-23 14:07:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:07:57,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:57,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:57,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116593688] [2021-11-23 14:07:57,885 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:57,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582689436] [2021-11-23 14:07:57,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582689436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:57,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:57,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:07:57,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715689590] [2021-11-23 14:07:57,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:57,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:07:57,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:57,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:07:57,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:07:57,890 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-11-23 14:07:58,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:58,241 INFO L93 Difference]: Finished difference Result 379 states and 483 transitions. [2021-11-23 14:07:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:07:58,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 69 [2021-11-23 14:07:58,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:58,244 INFO L225 Difference]: With dead ends: 379 [2021-11-23 14:07:58,244 INFO L226 Difference]: Without dead ends: 375 [2021-11-23 14:07:58,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:07:58,246 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 135 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:07:58,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 564 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:07:58,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-23 14:07:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 293. [2021-11-23 14:07:58,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 291 states have (on average 1.2646048109965635) internal successors, (368), 292 states have internal predecessors, (368), 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) [2021-11-23 14:07:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2021-11-23 14:07:58,258 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 69 [2021-11-23 14:07:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:58,259 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2021-11-23 14:07:58,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2021-11-23 14:07:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2021-11-23 14:07:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 14:07:58,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:58,260 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:58,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:58,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:58,488 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:58,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2000986198, now seen corresponding path program 1 times [2021-11-23 14:07:58,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:58,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777758758] [2021-11-23 14:07:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:58,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:58,505 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:58,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831111671] [2021-11-23 14:07:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:58,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:58,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:58,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 14:07:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:58,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:58,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:07:58,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:58,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777758758] [2021-11-23 14:07:58,848 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831111671] [2021-11-23 14:07:58,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831111671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:58,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:58,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:07:58,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556219673] [2021-11-23 14:07:58,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:58,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:07:58,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:58,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:07:58,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:58,850 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-23 14:07:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:58,932 INFO L93 Difference]: Finished difference Result 483 states and 627 transitions. [2021-11-23 14:07:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:07:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 103 [2021-11-23 14:07:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:58,938 INFO L225 Difference]: With dead ends: 483 [2021-11-23 14:07:58,939 INFO L226 Difference]: Without dead ends: 335 [2021-11-23 14:07:58,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:07:58,947 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 395 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 [2021-11-23 14:07:58,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 395 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:07:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-23 14:07:58,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 333. [2021-11-23 14:07:58,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 331 states have (on average 1.2326283987915407) internal successors, (408), 332 states have internal predecessors, (408), 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) [2021-11-23 14:07:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 408 transitions. [2021-11-23 14:07:58,962 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 408 transitions. Word has length 103 [2021-11-23 14:07:58,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:58,963 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 408 transitions. [2021-11-23 14:07:58,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-23 14:07:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 408 transitions. [2021-11-23 14:07:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 14:07:58,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:58,970 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:58,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:59,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:59,174 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1973776046, now seen corresponding path program 1 times [2021-11-23 14:07:59,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:59,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644288447] [2021-11-23 14:07:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:59,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:59,189 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:59,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886850595] [2021-11-23 14:07:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:59,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:59,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:59,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:59,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 14:07:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:59,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:07:59,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:07:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 14:07:59,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:07:59,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:59,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644288447] [2021-11-23 14:07:59,512 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:07:59,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886850595] [2021-11-23 14:07:59,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886850595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:59,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:59,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:07:59,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847618569] [2021-11-23 14:07:59,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:59,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:07:59,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:59,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:07:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:07:59,515 INFO L87 Difference]: Start difference. First operand 333 states and 408 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-23 14:07:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:07:59,582 INFO L93 Difference]: Finished difference Result 498 states and 622 transitions. [2021-11-23 14:07:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:07:59,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 103 [2021-11-23 14:07:59,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:07:59,586 INFO L225 Difference]: With dead ends: 498 [2021-11-23 14:07:59,586 INFO L226 Difference]: Without dead ends: 310 [2021-11-23 14:07:59,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:07:59,587 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 103 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 510 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 [2021-11-23 14:07:59,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 510 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:07:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-23 14:07:59,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 305. [2021-11-23 14:07:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 303 states have (on average 1.2079207920792079) internal successors, (366), 304 states have internal predecessors, (366), 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) [2021-11-23 14:07:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 366 transitions. [2021-11-23 14:07:59,600 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 366 transitions. Word has length 103 [2021-11-23 14:07:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:07:59,601 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 366 transitions. [2021-11-23 14:07:59,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2021-11-23 14:07:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 366 transitions. [2021-11-23 14:07:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 14:07:59,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:59,603 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:59,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:07:59,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 14:07:59,816 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1090927200, now seen corresponding path program 1 times [2021-11-23 14:07:59,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:59,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790995645] [2021-11-23 14:07:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:59,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:59,831 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:07:59,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124277789] [2021-11-23 14:07:59,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:59,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:07:59,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:59,832 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:07:59,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 14:08:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:00,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 14:08:00,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:00,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:08:00,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:00,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790995645] [2021-11-23 14:08:00,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:08:00,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124277789] [2021-11-23 14:08:00,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124277789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:00,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:00,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:08:00,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689643350] [2021-11-23 14:08:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:00,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:08:00,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:08:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:08:00,250 INFO L87 Difference]: Start difference. First operand 305 states and 366 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-11-23 14:08:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:08:00,546 INFO L93 Difference]: Finished difference Result 653 states and 790 transitions. [2021-11-23 14:08:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:08:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 103 [2021-11-23 14:08:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:08:00,549 INFO L225 Difference]: With dead ends: 653 [2021-11-23 14:08:00,550 INFO L226 Difference]: Without dead ends: 396 [2021-11-23 14:08:00,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:08:00,551 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 416 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:08:00,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 365 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:08:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-23 14:08:00,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 389. [2021-11-23 14:08:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 387 states have (on average 1.2144702842377262) internal successors, (470), 388 states have internal predecessors, (470), 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) [2021-11-23 14:08:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 470 transitions. [2021-11-23 14:08:00,566 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 470 transitions. Word has length 103 [2021-11-23 14:08:00,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:08:00,566 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 470 transitions. [2021-11-23 14:08:00,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-11-23 14:08:00,566 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 470 transitions. [2021-11-23 14:08:00,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 14:08:00,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:08:00,567 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:00,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-23 14:08:00,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:00,768 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:08:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:00,768 INFO L85 PathProgramCache]: Analyzing trace with hash 541561274, now seen corresponding path program 1 times [2021-11-23 14:08:00,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:00,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287684872] [2021-11-23 14:08:00,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:00,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:00,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:08:00,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399294333] [2021-11-23 14:08:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:00,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:08:00,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:08:00,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:08:00,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dacc2c39-8cad-4b6a-93d3-0f1fd5b88a45/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 14:08:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:01,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 14:08:01,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:08:01,031 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 [2021-11-23 14:08:01,037 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 [2021-11-23 14:08:01,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:01,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-11-23 14:08:01,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:01,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:01,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:01,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 38 treesize of output 29 [2021-11-23 14:08:02,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,254 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 75 treesize of output 57 [2021-11-23 14:08:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,265 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 37 treesize of output 42 [2021-11-23 14:08:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-23 14:08:02,467 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 29 treesize of output 25 [2021-11-23 14:08:02,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,485 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-11-23 14:08:02,486 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 [2021-11-23 14:08:02,496 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 13 treesize of output 9 [2021-11-23 14:08:02,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:02,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2021-11-23 14:08:04,489 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-23 14:08:04,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2831 treesize of output 2280 [2021-11-23 14:08:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,666 INFO L354 Elim1Store]: treesize reduction 448, result has 17.8 percent of original size [2021-11-23 14:08:06,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 3246 treesize of output 2904 [2021-11-23 14:08:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:14,429 WARN L227 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 535 DAG size of output: 129 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 14:08:14,430 INFO L354 Elim1Store]: treesize reduction 11581, result has 3.6 percent of original size [2021-11-23 14:08:14,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 4244 treesize of output 2275 [2021-11-23 14:08:15,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2021-11-23 14:08:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2021-11-23 14:08:15,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:15,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:15,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:16,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:16,075 INFO L244 Elim1Store]: Index analysis took 277 ms [2021-11-23 14:08:16,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 920 treesize of output 420 [2021-11-23 14:08:21,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:08:21,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 28 [2021-11-23 14:08:21,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:21,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 14:08:21,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:48,091 WARN L227 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 1412 DAG size of output: 359 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 14:09:48,093 INFO L354 Elim1Store]: treesize reduction 33944, result has 3.6 percent of original size [2021-11-23 14:09:48,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 24 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 36 new quantified variables, introduced 121 case distinctions, treesize of input 1992125 treesize of output 812278 [2021-11-23 14:09:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,853 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-11-23 14:09:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:52,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:53,074 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:09:53,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1040 treesize of output 468 [2021-11-23 14:09:53,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:53,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,062 INFO L244 Elim1Store]: Index analysis took 287 ms [2021-11-23 14:09:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,394 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:09:54,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1379 treesize of output 623 [2021-11-23 14:09:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,806 INFO L244 Elim1Store]: Index analysis took 314 ms [2021-11-23 14:09:54,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,098 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:09:55,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1028 treesize of output 462 [2021-11-23 14:09:55,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,529 INFO L244 Elim1Store]: Index analysis took 293 ms [2021-11-23 14:09:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 14:09:55,956 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 14:09:55,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 1559 treesize of output 687