./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:13:41,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:13:41,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:13:41,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:13:41,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:13:41,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:13:41,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:13:41,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:13:41,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:13:41,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:13:41,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:13:41,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:13:41,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:13:41,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:13:41,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:13:41,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:13:41,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:13:41,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:13:41,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:13:41,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:13:41,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:13:41,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:13:41,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:13:41,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:13:41,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:13:41,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:13:41,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:13:41,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:13:41,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:13:41,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:13:41,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:13:41,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:13:41,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:13:41,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:13:41,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:13:41,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:13:41,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:13:41,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:13:41,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:13:41,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:13:41,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:13:41,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-07 08:13:41,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:13:41,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:13:41,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:13:41,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:13:41,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:13:41,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:13:41,490 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:13:41,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:13:41,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:13:41,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:13:41,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:13:41,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:13:41,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:13:41,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:13:41,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:13:41,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:13:41,493 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 08:13:41,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:13:41,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:13:41,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:13:41,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:13:41,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:13:41,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:13:41,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:13:41,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:13:41,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:13:41,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:13:41,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:13:41,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:13:41,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:13:41,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:13:41,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:13:41,497 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2021-11-07 08:13:41,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:13:41,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:13:41,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:13:41,759 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:13:41,760 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:13:41,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-07 08:13:41,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/data/5a9ad0e99/1229c3c76b994400880c03b0c3de86a0/FLAG733a5e9c7 [2021-11-07 08:13:42,616 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:13:42,617 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-07 08:13:42,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/data/5a9ad0e99/1229c3c76b994400880c03b0c3de86a0/FLAG733a5e9c7 [2021-11-07 08:13:42,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/data/5a9ad0e99/1229c3c76b994400880c03b0c3de86a0 [2021-11-07 08:13:42,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:13:42,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:13:42,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:13:42,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:13:42,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:13:42,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:13:42" (1/1) ... [2021-11-07 08:13:42,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d72c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:42, skipping insertion in model container [2021-11-07 08:13:42,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:13:42" (1/1) ... [2021-11-07 08:13:42,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:13:42,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:13:43,633 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-07 08:13:43,652 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-07 08:13:43,834 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-07 08:13:43,836 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-07 08:13:43,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:13:43,894 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:13:43,933 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-07 08:13:43,936 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-07 08:13:43,990 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-07 08:13:43,991 WARN L228 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_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-07 08:13:44,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:13:44,125 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:13:44,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44 WrapperNode [2021-11-07 08:13:44,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:13:44,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:13:44,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:13:44,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:13:44,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:13:44,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:13:44,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:13:44,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:13:44,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:13:44,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:13:44,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:13:44,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:13:44,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (1/1) ... [2021-11-07 08:13:44,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:13:44,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:44,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:13:44,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:13:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:13:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 08:13:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:13:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:13:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:13:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:13:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:13:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:13:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:13:44,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:13:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:13:46,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:13:46,413 INFO L299 CfgBuilder]: Removed 124 assume(true) statements. [2021-11-07 08:13:46,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:13:46 BoogieIcfgContainer [2021-11-07 08:13:46,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:13:46,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:13:46,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:13:46,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:13:46,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:13:42" (1/3) ... [2021-11-07 08:13:46,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162f4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:13:46, skipping insertion in model container [2021-11-07 08:13:46,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:13:44" (2/3) ... [2021-11-07 08:13:46,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1162f4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:13:46, skipping insertion in model container [2021-11-07 08:13:46,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:13:46" (3/3) ... [2021-11-07 08:13:46,456 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2021-11-07 08:13:46,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:13:46,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-07 08:13:46,559 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:13:46,565 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:13:46,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-07 08:13:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 279 states have (on average 1.6881720430107527) internal successors, (471), 311 states have internal predecessors, (471), 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) [2021-11-07 08:13:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 08:13:46,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:46,621 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:46,622 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 149889836, now seen corresponding path program 1 times [2021-11-07 08:13:46,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:46,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779976436] [2021-11-07 08:13:46,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:46,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:46,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:46,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779976436] [2021-11-07 08:13:46,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779976436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:46,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:46,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:13:46,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015666351] [2021-11-07 08:13:46,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:13:46,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:13:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:13:46,855 INFO L87 Difference]: Start difference. First operand has 312 states, 279 states have (on average 1.6881720430107527) internal successors, (471), 311 states have internal predecessors, (471), 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) [2021-11-07 08:13:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:46,913 INFO L93 Difference]: Finished difference Result 614 states and 931 transitions. [2021-11-07 08:13:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:13:46,915 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 [2021-11-07 08:13:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:46,932 INFO L225 Difference]: With dead ends: 614 [2021-11-07 08:13:46,932 INFO L226 Difference]: Without dead ends: 300 [2021-11-07 08:13:46,937 INFO L786 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 [2021-11-07 08:13:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-07 08:13:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-11-07 08:13:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 270 states have (on average 1.3666666666666667) internal successors, (369), 299 states have internal predecessors, (369), 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) [2021-11-07 08:13:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 369 transitions. [2021-11-07 08:13:47,003 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 369 transitions. Word has length 8 [2021-11-07 08:13:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:47,004 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 369 transitions. [2021-11-07 08:13:47,004 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) [2021-11-07 08:13:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 369 transitions. [2021-11-07 08:13:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 08:13:47,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:47,005 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:47,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:13:47,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash 149891758, now seen corresponding path program 1 times [2021-11-07 08:13:47,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:47,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288040361] [2021-11-07 08:13:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:47,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:47,043 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:47,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984822716] [2021-11-07 08:13:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:47,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:47,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:47,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:47,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:13:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:47,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 08:13:47,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:47,355 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 [2021-11-07 08:13:47,362 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 [2021-11-07 08:13:47,426 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 08:13:47,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-07 08:13:47,531 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 19 treesize of output 11 [2021-11-07 08:13:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:47,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:47,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288040361] [2021-11-07 08:13:47,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:47,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984822716] [2021-11-07 08:13:47,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984822716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:47,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:47,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:13:47,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791123295] [2021-11-07 08:13:47,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:13:47,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:47,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:13:47,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:47,564 INFO L87 Difference]: Start difference. First operand 300 states and 369 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2021-11-07 08:13:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:48,604 INFO L93 Difference]: Finished difference Result 464 states and 578 transitions. [2021-11-07 08:13:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:13:48,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2021-11-07 08:13:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:48,609 INFO L225 Difference]: With dead ends: 464 [2021-11-07 08:13:48,610 INFO L226 Difference]: Without dead ends: 462 [2021-11-07 08:13:48,611 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:13:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-07 08:13:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 307. [2021-11-07 08:13:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 277 states have (on average 1.3610108303249098) internal successors, (377), 306 states have internal predecessors, (377), 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) [2021-11-07 08:13:48,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 377 transitions. [2021-11-07 08:13:48,633 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 377 transitions. Word has length 8 [2021-11-07 08:13:48,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:48,633 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 377 transitions. [2021-11-07 08:13:48,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2021-11-07 08:13:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 377 transitions. [2021-11-07 08:13:48,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 08:13:48,635 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:48,635 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:48,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:48,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-07 08:13:48,851 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1496249576, now seen corresponding path program 1 times [2021-11-07 08:13:48,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:48,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941800454] [2021-11-07 08:13:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:48,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:48,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:48,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:48,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941800454] [2021-11-07 08:13:48,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941800454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:48,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:48,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:13:48,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608279302] [2021-11-07 08:13:48,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:13:48,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:48,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:13:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:48,928 INFO L87 Difference]: Start difference. First operand 307 states and 377 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-11-07 08:13:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:49,309 INFO L93 Difference]: Finished difference Result 602 states and 742 transitions. [2021-11-07 08:13:49,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:13:49,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2021-11-07 08:13:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:49,313 INFO L225 Difference]: With dead ends: 602 [2021-11-07 08:13:49,313 INFO L226 Difference]: Without dead ends: 447 [2021-11-07 08:13:49,314 INFO L786 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 [2021-11-07 08:13:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-07 08:13:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 307. [2021-11-07 08:13:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 277 states have (on average 1.3574007220216606) internal successors, (376), 306 states have internal predecessors, (376), 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) [2021-11-07 08:13:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 376 transitions. [2021-11-07 08:13:49,349 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 376 transitions. Word has length 23 [2021-11-07 08:13:49,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:49,350 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 376 transitions. [2021-11-07 08:13:49,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-11-07 08:13:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 376 transitions. [2021-11-07 08:13:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 08:13:49,353 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:49,353 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:49,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:13:49,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash 351079904, now seen corresponding path program 1 times [2021-11-07 08:13:49,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:49,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161610891] [2021-11-07 08:13:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:49,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:49,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:49,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987294221] [2021-11-07 08:13:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:49,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:49,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:49,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:49,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 08:13:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:49,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:13:49,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:49,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:49,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161610891] [2021-11-07 08:13:49,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:49,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987294221] [2021-11-07 08:13:49,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987294221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:49,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:49,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:13:49,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386092835] [2021-11-07 08:13:49,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:13:49,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:13:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:49,725 INFO L87 Difference]: Start difference. First operand 307 states and 376 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 08:13:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:49,826 INFO L93 Difference]: Finished difference Result 626 states and 774 transitions. [2021-11-07 08:13:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:49,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-07 08:13:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:49,829 INFO L225 Difference]: With dead ends: 626 [2021-11-07 08:13:49,830 INFO L226 Difference]: Without dead ends: 328 [2021-11-07 08:13:49,830 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-07 08:13:49,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2021-11-07 08:13:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 297 states have (on average 1.3333333333333333) internal successors, (396), 326 states have internal predecessors, (396), 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) [2021-11-07 08:13:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 396 transitions. [2021-11-07 08:13:49,839 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 396 transitions. Word has length 44 [2021-11-07 08:13:49,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:49,840 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 396 transitions. [2021-11-07 08:13:49,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 08:13:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 396 transitions. [2021-11-07 08:13:49,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 08:13:49,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:49,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:49,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:50,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:50,059 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash 30874852, now seen corresponding path program 1 times [2021-11-07 08:13:50,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:50,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694866731] [2021-11-07 08:13:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:50,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:50,081 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:50,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096268297] [2021-11-07 08:13:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:50,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:50,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:50,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:50,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 08:13:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:50,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:13:50,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:50,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:50,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694866731] [2021-11-07 08:13:50,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:50,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096268297] [2021-11-07 08:13:50,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096268297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:50,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:50,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:13:50,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734958546] [2021-11-07 08:13:50,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:13:50,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:50,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:13:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:50,375 INFO L87 Difference]: Start difference. First operand 327 states and 396 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-07 08:13:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:50,476 INFO L93 Difference]: Finished difference Result 635 states and 773 transitions. [2021-11-07 08:13:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:13:50,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-07 08:13:50,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:50,479 INFO L225 Difference]: With dead ends: 635 [2021-11-07 08:13:50,479 INFO L226 Difference]: Without dead ends: 317 [2021-11-07 08:13:50,480 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:13:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-07 08:13:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2021-11-07 08:13:50,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 283 states have (on average 1.325088339222615) internal successors, (375), 312 states have internal predecessors, (375), 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) [2021-11-07 08:13:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 375 transitions. [2021-11-07 08:13:50,489 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 375 transitions. Word has length 44 [2021-11-07 08:13:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:50,489 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 375 transitions. [2021-11-07 08:13:50,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-11-07 08:13:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 375 transitions. [2021-11-07 08:13:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 08:13:50,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:50,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:50,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:50,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:50,715 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:50,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:50,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1174088982, now seen corresponding path program 1 times [2021-11-07 08:13:50,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:50,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340459743] [2021-11-07 08:13:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:50,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:50,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:50,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79734661] [2021-11-07 08:13:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:50,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:50,744 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:50,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 08:13:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:50,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:13:50,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:51,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:51,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340459743] [2021-11-07 08:13:51,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:51,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79734661] [2021-11-07 08:13:51,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79734661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:51,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:51,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:13:51,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325501532] [2021-11-07 08:13:51,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:13:51,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:13:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:51,132 INFO L87 Difference]: Start difference. First operand 313 states and 375 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 08:13:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:51,271 INFO L93 Difference]: Finished difference Result 544 states and 658 transitions. [2021-11-07 08:13:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:13:51,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-07 08:13:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:51,275 INFO L225 Difference]: With dead ends: 544 [2021-11-07 08:13:51,276 INFO L226 Difference]: Without dead ends: 538 [2021-11-07 08:13:51,276 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:13:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-07 08:13:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 526. [2021-11-07 08:13:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 496 states have (on average 1.3064516129032258) internal successors, (648), 525 states have internal predecessors, (648), 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) [2021-11-07 08:13:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 648 transitions. [2021-11-07 08:13:51,295 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 648 transitions. Word has length 44 [2021-11-07 08:13:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:51,295 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 648 transitions. [2021-11-07 08:13:51,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-07 08:13:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 648 transitions. [2021-11-07 08:13:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 08:13:51,297 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:51,297 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:51,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:51,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:51,511 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:51,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:51,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2037020282, now seen corresponding path program 1 times [2021-11-07 08:13:51,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:51,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767927724] [2021-11-07 08:13:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:51,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:51,530 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:51,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438790630] [2021-11-07 08:13:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:51,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:51,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:51,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:51,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 08:13:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:51,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:13:51,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:51,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:51,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767927724] [2021-11-07 08:13:51,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:51,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438790630] [2021-11-07 08:13:51,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438790630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:51,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:51,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:13:51,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242501554] [2021-11-07 08:13:51,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:13:51,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:13:51,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:51,870 INFO L87 Difference]: Start difference. First operand 526 states and 648 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-07 08:13:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:52,048 INFO L93 Difference]: Finished difference Result 922 states and 1151 transitions. [2021-11-07 08:13:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:13:52,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 08:13:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:52,054 INFO L225 Difference]: With dead ends: 922 [2021-11-07 08:13:52,055 INFO L226 Difference]: Without dead ends: 916 [2021-11-07 08:13:52,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:13:52,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2021-11-07 08:13:52,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 899. [2021-11-07 08:13:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 869 states have (on average 1.3153049482163406) internal successors, (1143), 898 states have internal predecessors, (1143), 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) [2021-11-07 08:13:52,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1143 transitions. [2021-11-07 08:13:52,096 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1143 transitions. Word has length 45 [2021-11-07 08:13:52,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:52,097 INFO L470 AbstractCegarLoop]: Abstraction has 899 states and 1143 transitions. [2021-11-07 08:13:52,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-07 08:13:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1143 transitions. [2021-11-07 08:13:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 08:13:52,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:52,109 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:52,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-07 08:13:52,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:52,310 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:52,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:52,311 INFO L85 PathProgramCache]: Analyzing trace with hash 290748613, now seen corresponding path program 1 times [2021-11-07 08:13:52,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:52,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008371325] [2021-11-07 08:13:52,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:52,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:52,331 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:52,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127171088] [2021-11-07 08:13:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:52,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:52,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:52,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 08:13:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:52,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:13:52,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:52,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:52,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008371325] [2021-11-07 08:13:52,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:52,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127171088] [2021-11-07 08:13:52,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127171088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:52,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:52,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 08:13:52,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840366389] [2021-11-07 08:13:52,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:13:52,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:52,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:13:52,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:52,712 INFO L87 Difference]: Start difference. First operand 899 states and 1143 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:13:52,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:52,750 INFO L93 Difference]: Finished difference Result 929 states and 1165 transitions. [2021-11-07 08:13:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:52,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 08:13:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:52,756 INFO L225 Difference]: With dead ends: 929 [2021-11-07 08:13:52,756 INFO L226 Difference]: Without dead ends: 927 [2021-11-07 08:13:52,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-11-07 08:13:52,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 913. [2021-11-07 08:13:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 883 states have (on average 1.3125707814269536) internal successors, (1159), 912 states have internal predecessors, (1159), 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) [2021-11-07 08:13:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1159 transitions. [2021-11-07 08:13:52,787 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1159 transitions. Word has length 50 [2021-11-07 08:13:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:52,788 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1159 transitions. [2021-11-07 08:13:52,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:13:52,788 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1159 transitions. [2021-11-07 08:13:52,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 08:13:52,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:52,789 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:52,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:53,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:53,015 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash 423272643, now seen corresponding path program 1 times [2021-11-07 08:13:53,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:53,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115331810] [2021-11-07 08:13:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:53,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:53,033 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:53,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37399472] [2021-11-07 08:13:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:53,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:53,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:53,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:53,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 08:13:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:53,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:13:53,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:53,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:53,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115331810] [2021-11-07 08:13:53,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:53,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37399472] [2021-11-07 08:13:53,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37399472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:53,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:53,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 08:13:53,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673095221] [2021-11-07 08:13:53,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:13:53,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:53,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:13:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:53,445 INFO L87 Difference]: Start difference. First operand 913 states and 1159 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-07 08:13:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:53,486 INFO L93 Difference]: Finished difference Result 913 states and 1159 transitions. [2021-11-07 08:13:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-11-07 08:13:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:53,492 INFO L225 Difference]: With dead ends: 913 [2021-11-07 08:13:53,492 INFO L226 Difference]: Without dead ends: 910 [2021-11-07 08:13:53,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-11-07 08:13:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2021-11-07 08:13:53,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 883 states have (on average 1.305775764439411) internal successors, (1153), 909 states have internal predecessors, (1153), 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) [2021-11-07 08:13:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1153 transitions. [2021-11-07 08:13:53,520 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1153 transitions. Word has length 51 [2021-11-07 08:13:53,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:53,521 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1153 transitions. [2021-11-07 08:13:53,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-07 08:13:53,521 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1153 transitions. [2021-11-07 08:13:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 08:13:53,522 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:53,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:53,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:53,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:53,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash -971613497, now seen corresponding path program 1 times [2021-11-07 08:13:53,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:53,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992156155] [2021-11-07 08:13:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:53,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:53,753 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:53,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693604329] [2021-11-07 08:13:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:53,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:53,755 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:53,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 08:13:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:54,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:13:54,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:54,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:54,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:54,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992156155] [2021-11-07 08:13:54,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:54,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693604329] [2021-11-07 08:13:54,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693604329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:54,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:54,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:13:54,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557409507] [2021-11-07 08:13:54,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:13:54,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:54,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:13:54,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:54,220 INFO L87 Difference]: Start difference. First operand 910 states and 1153 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2021-11-07 08:13:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:54,591 INFO L93 Difference]: Finished difference Result 1713 states and 2163 transitions. [2021-11-07 08:13:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:13:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 55 [2021-11-07 08:13:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:54,605 INFO L225 Difference]: With dead ends: 1713 [2021-11-07 08:13:54,605 INFO L226 Difference]: Without dead ends: 1705 [2021-11-07 08:13:54,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:13:54,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2021-11-07 08:13:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1252. [2021-11-07 08:13:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1225 states have (on average 1.28734693877551) internal successors, (1577), 1251 states have internal predecessors, (1577), 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) [2021-11-07 08:13:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1577 transitions. [2021-11-07 08:13:54,663 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1577 transitions. Word has length 55 [2021-11-07 08:13:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:54,664 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 1577 transitions. [2021-11-07 08:13:54,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2021-11-07 08:13:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1577 transitions. [2021-11-07 08:13:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 08:13:54,665 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:54,666 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:54,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:54,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 08:13:54,875 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:54,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2000761334, now seen corresponding path program 1 times [2021-11-07 08:13:54,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:54,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497066464] [2021-11-07 08:13:54,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:54,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:54,891 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:54,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040711193] [2021-11-07 08:13:54,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:54,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:54,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:54,892 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:54,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 08:13:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:55,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:13:55,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:55,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:55,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497066464] [2021-11-07 08:13:55,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:55,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040711193] [2021-11-07 08:13:55,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040711193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:55,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:55,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:13:55,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492772724] [2021-11-07 08:13:55,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:13:55,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:55,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:13:55,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:55,534 INFO L87 Difference]: Start difference. First operand 1252 states and 1577 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-07 08:13:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:55,722 INFO L93 Difference]: Finished difference Result 2924 states and 3705 transitions. [2021-11-07 08:13:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:55,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-07 08:13:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:55,732 INFO L225 Difference]: With dead ends: 2924 [2021-11-07 08:13:55,733 INFO L226 Difference]: Without dead ends: 1681 [2021-11-07 08:13:55,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2021-11-07 08:13:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1515. [2021-11-07 08:13:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1488 states have (on average 1.2916666666666667) internal successors, (1922), 1514 states have internal predecessors, (1922), 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) [2021-11-07 08:13:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1922 transitions. [2021-11-07 08:13:55,784 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1922 transitions. Word has length 58 [2021-11-07 08:13:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:55,785 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 1922 transitions. [2021-11-07 08:13:55,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-11-07 08:13:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1922 transitions. [2021-11-07 08:13:55,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 08:13:55,786 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:55,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:55,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:56,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-07 08:13:56,003 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 533355926, now seen corresponding path program 1 times [2021-11-07 08:13:56,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:56,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080785772] [2021-11-07 08:13:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:56,034 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:56,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123697936] [2021-11-07 08:13:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:56,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:56,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:56,038 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:56,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 08:13:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:56,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:13:56,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:56,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:56,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:56,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080785772] [2021-11-07 08:13:56,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:56,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123697936] [2021-11-07 08:13:56,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123697936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:56,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:56,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:13:56,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884671703] [2021-11-07 08:13:56,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:13:56,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:56,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:13:56,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:56,564 INFO L87 Difference]: Start difference. First operand 1515 states and 1922 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-07 08:13:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:56,614 INFO L93 Difference]: Finished difference Result 1546 states and 1959 transitions. [2021-11-07 08:13:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:13:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-07 08:13:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:56,623 INFO L225 Difference]: With dead ends: 1546 [2021-11-07 08:13:56,623 INFO L226 Difference]: Without dead ends: 1545 [2021-11-07 08:13:56,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:13:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2021-11-07 08:13:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1542. [2021-11-07 08:13:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1515 states have (on average 1.2891089108910891) internal successors, (1953), 1541 states have internal predecessors, (1953), 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) [2021-11-07 08:13:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1953 transitions. [2021-11-07 08:13:56,673 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1953 transitions. Word has length 61 [2021-11-07 08:13:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:56,674 INFO L470 AbstractCegarLoop]: Abstraction has 1542 states and 1953 transitions. [2021-11-07 08:13:56,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-07 08:13:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1953 transitions. [2021-11-07 08:13:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 08:13:56,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:56,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:56,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-07 08:13:56,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 08:13:56,893 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:56,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash -403392580, now seen corresponding path program 1 times [2021-11-07 08:13:56,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:56,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188736500] [2021-11-07 08:13:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:56,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:56,913 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:56,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737542047] [2021-11-07 08:13:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:56,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:56,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:56,915 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:56,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 08:13:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:57,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:13:57,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:57,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:57,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188736500] [2021-11-07 08:13:57,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:57,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737542047] [2021-11-07 08:13:57,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737542047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:57,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:57,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:13:57,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181988098] [2021-11-07 08:13:57,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:13:57,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:57,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:13:57,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:57,491 INFO L87 Difference]: Start difference. First operand 1542 states and 1953 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-11-07 08:13:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:57,839 INFO L93 Difference]: Finished difference Result 2793 states and 3554 transitions. [2021-11-07 08:13:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:13:57,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2021-11-07 08:13:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:57,855 INFO L225 Difference]: With dead ends: 2793 [2021-11-07 08:13:57,855 INFO L226 Difference]: Without dead ends: 2785 [2021-11-07 08:13:57,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:13:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-11-07 08:13:57,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1778. [2021-11-07 08:13:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1751 states have (on average 1.284408909194746) internal successors, (2249), 1777 states have internal predecessors, (2249), 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) [2021-11-07 08:13:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2249 transitions. [2021-11-07 08:13:57,936 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2249 transitions. Word has length 78 [2021-11-07 08:13:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:57,936 INFO L470 AbstractCegarLoop]: Abstraction has 1778 states and 2249 transitions. [2021-11-07 08:13:57,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-11-07 08:13:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2249 transitions. [2021-11-07 08:13:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:13:57,938 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:57,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:57,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:58,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:58,159 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash -620085575, now seen corresponding path program 1 times [2021-11-07 08:13:58,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:58,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528904903] [2021-11-07 08:13:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:58,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:58,179 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:58,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243622253] [2021-11-07 08:13:58,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:58,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:58,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:58,181 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:58,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 08:13:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:58,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:13:58,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:13:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:58,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:58,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528904903] [2021-11-07 08:13:58,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:13:58,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243622253] [2021-11-07 08:13:58,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243622253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:58,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:58,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:13:58,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049406983] [2021-11-07 08:13:58,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:13:58,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:58,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:13:58,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:13:58,756 INFO L87 Difference]: Start difference. First operand 1778 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2021-11-07 08:13:59,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:59,009 INFO L93 Difference]: Finished difference Result 3760 states and 4771 transitions. [2021-11-07 08:13:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:13:59,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2021-11-07 08:13:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:59,020 INFO L225 Difference]: With dead ends: 3760 [2021-11-07 08:13:59,020 INFO L226 Difference]: Without dead ends: 2053 [2021-11-07 08:13:59,023 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:13:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2021-11-07 08:13:59,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 1833. [2021-11-07 08:13:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1833 states, 1806 states have (on average 1.2879291251384275) internal successors, (2326), 1832 states have internal predecessors, (2326), 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) [2021-11-07 08:13:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2326 transitions. [2021-11-07 08:13:59,122 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2326 transitions. Word has length 81 [2021-11-07 08:13:59,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:59,122 INFO L470 AbstractCegarLoop]: Abstraction has 1833 states and 2326 transitions. [2021-11-07 08:13:59,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2021-11-07 08:13:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2326 transitions. [2021-11-07 08:13:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:13:59,123 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:59,124 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:13:59,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:13:59,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:59,339 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:13:59,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:59,340 INFO L85 PathProgramCache]: Analyzing trace with hash -500984517, now seen corresponding path program 1 times [2021-11-07 08:13:59,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:59,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094498808] [2021-11-07 08:13:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:59,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:59,367 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:13:59,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415833926] [2021-11-07 08:13:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:59,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:13:59,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:13:59,369 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:13:59,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 08:13:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:59,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 08:13:59,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:14:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:14:00,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:14:00,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094498808] [2021-11-07 08:14:00,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:14:00,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415833926] [2021-11-07 08:14:00,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415833926] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:14:00,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:14:00,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:14:00,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529614181] [2021-11-07 08:14:00,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:14:00,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:14:00,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:14:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:14:00,081 INFO L87 Difference]: Start difference. First operand 1833 states and 2326 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2021-11-07 08:14:00,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:14:00,283 INFO L93 Difference]: Finished difference Result 4530 states and 5794 transitions. [2021-11-07 08:14:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 08:14:00,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 82 [2021-11-07 08:14:00,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:14:00,299 INFO L225 Difference]: With dead ends: 4530 [2021-11-07 08:14:00,299 INFO L226 Difference]: Without dead ends: 2759 [2021-11-07 08:14:00,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:14:00,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2021-11-07 08:14:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 1839. [2021-11-07 08:14:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1812 states have (on average 1.2869757174392935) internal successors, (2332), 1838 states have internal predecessors, (2332), 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) [2021-11-07 08:14:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2332 transitions. [2021-11-07 08:14:00,387 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2332 transitions. Word has length 82 [2021-11-07 08:14:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:14:00,388 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2332 transitions. [2021-11-07 08:14:00,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2021-11-07 08:14:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2332 transitions. [2021-11-07 08:14:00,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 08:14:00,389 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:14:00,389 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:14:00,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:14:00,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 08:14:00,615 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:14:00,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:14:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash -5033539, now seen corresponding path program 1 times [2021-11-07 08:14:00,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:14:00,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754708360] [2021-11-07 08:14:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:00,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:14:00,635 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:14:00,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827113262] [2021-11-07 08:14:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:00,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:14:00,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:14:00,637 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:14:00,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 08:14:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:14:01,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 08:14:01,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:14:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:14:01,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:14:01,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754708360] [2021-11-07 08:14:01,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:14:01,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827113262] [2021-11-07 08:14:01,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827113262] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:14:01,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:14:01,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-11-07 08:14:01,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268449720] [2021-11-07 08:14:01,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:14:01,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:14:01,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:14:01,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:14:01,347 INFO L87 Difference]: Start difference. First operand 1839 states and 2332 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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) [2021-11-07 08:14:01,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:14:01,579 INFO L93 Difference]: Finished difference Result 4543 states and 5807 transitions. [2021-11-07 08:14:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 08:14:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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 83 [2021-11-07 08:14:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:14:01,594 INFO L225 Difference]: With dead ends: 4543 [2021-11-07 08:14:01,595 INFO L226 Difference]: Without dead ends: 2767 [2021-11-07 08:14:01,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-11-07 08:14:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-11-07 08:14:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1845. [2021-11-07 08:14:01,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1818 states have (on average 1.286028602860286) internal successors, (2338), 1844 states have internal predecessors, (2338), 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) [2021-11-07 08:14:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2338 transitions. [2021-11-07 08:14:01,674 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2338 transitions. Word has length 83 [2021-11-07 08:14:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:14:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 1845 states and 2338 transitions. [2021-11-07 08:14:01,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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) [2021-11-07 08:14:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2338 transitions. [2021-11-07 08:14:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 08:14:01,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:14:01,676 INFO L513 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] [2021-11-07 08:14:01,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:14:01,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 08:14:01,891 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:14:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:14:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1810422405, now seen corresponding path program 2 times [2021-11-07 08:14:01,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:14:01,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116028716] [2021-11-07 08:14:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:01,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:14:01,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:14:01,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33920641] [2021-11-07 08:14:01,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 08:14:01,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:14:01,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:14:01,912 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:14:01,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 08:14:02,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 08:14:02,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 08:14:02,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 08:14:02,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:14:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 08:14:02,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:14:02,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116028716] [2021-11-07 08:14:02,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:14:02,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33920641] [2021-11-07 08:14:02,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33920641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:14:02,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:14:02,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:14:02,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084092212] [2021-11-07 08:14:02,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:14:02,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:14:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:14:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:14:02,596 INFO L87 Difference]: Start difference. First operand 1845 states and 2338 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2021-11-07 08:14:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:14:02,696 INFO L93 Difference]: Finished difference Result 4358 states and 5548 transitions. [2021-11-07 08:14:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:14:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 84 [2021-11-07 08:14:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:14:02,711 INFO L225 Difference]: With dead ends: 4358 [2021-11-07 08:14:02,711 INFO L226 Difference]: Without dead ends: 2591 [2021-11-07 08:14:02,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:14:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2021-11-07 08:14:02,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1849. [2021-11-07 08:14:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1822 states have (on average 1.2854006586169044) internal successors, (2342), 1848 states have internal predecessors, (2342), 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) [2021-11-07 08:14:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2342 transitions. [2021-11-07 08:14:02,788 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2342 transitions. Word has length 84 [2021-11-07 08:14:02,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:14:02,789 INFO L470 AbstractCegarLoop]: Abstraction has 1849 states and 2342 transitions. [2021-11-07 08:14:02,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2021-11-07 08:14:02,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2342 transitions. [2021-11-07 08:14:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 08:14:02,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:14:02,791 INFO L513 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] [2021-11-07 08:14:02,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:14:03,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 08:14:03,007 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:14:03,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:14:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1866224866, now seen corresponding path program 1 times [2021-11-07 08:14:03,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:14:03,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886523895] [2021-11-07 08:14:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:03,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:14:03,031 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:14:03,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490271311] [2021-11-07 08:14:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:03,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:14:03,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:14:03,032 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:14:03,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 08:14:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:14:03,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 08:14:03,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:14:04,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:14:04,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:14:04,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886523895] [2021-11-07 08:14:04,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:14:04,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490271311] [2021-11-07 08:14:04,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490271311] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:14:04,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:14:04,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-11-07 08:14:04,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198130866] [2021-11-07 08:14:04,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:14:04,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:14:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:14:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:14:04,066 INFO L87 Difference]: Start difference. First operand 1849 states and 2342 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2021-11-07 08:14:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:14:04,488 INFO L93 Difference]: Finished difference Result 5396 states and 6872 transitions. [2021-11-07 08:14:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 08:14:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 85 [2021-11-07 08:14:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:14:04,508 INFO L225 Difference]: With dead ends: 5396 [2021-11-07 08:14:04,509 INFO L226 Difference]: Without dead ends: 3625 [2021-11-07 08:14:04,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2021-11-07 08:14:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3625 states. [2021-11-07 08:14:04,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3625 to 1853. [2021-11-07 08:14:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1826 states have (on average 1.284775465498357) internal successors, (2346), 1852 states have internal predecessors, (2346), 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) [2021-11-07 08:14:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2346 transitions. [2021-11-07 08:14:04,599 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2346 transitions. Word has length 85 [2021-11-07 08:14:04,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:14:04,600 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2346 transitions. [2021-11-07 08:14:04,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2021-11-07 08:14:04,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2346 transitions. [2021-11-07 08:14:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 08:14:04,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:14:04,602 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:14:04,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 08:14:04,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 08:14:04,818 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-07 08:14:04,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:14:04,819 INFO L85 PathProgramCache]: Analyzing trace with hash -121826725, now seen corresponding path program 2 times [2021-11-07 08:14:04,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:14:04,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560656019] [2021-11-07 08:14:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:04,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:14:04,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:14:04,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587594108] [2021-11-07 08:14:04,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 08:14:04,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:14:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:14:04,841 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:14:04,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c8d5c1b-1f1d-4c07-bf00-5130f42dae68/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process