./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G --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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:08:54,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:08:54,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:08:54,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:08:54,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:08:54,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:08:54,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:08:54,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:08:54,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:08:54,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:08:54,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:08:54,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:08:54,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:08:54,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:08:54,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:08:54,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:08:54,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:08:54,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:08:54,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:08:54,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:08:54,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:08:54,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:08:54,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:08:54,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:08:54,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:08:54,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:08:54,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:08:54,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:08:54,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:08:54,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:08:54,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:08:54,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:08:55,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:08:55,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:08:55,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:08:55,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:08:55,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:08:55,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:08:55,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:08:55,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:08:55,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:08:55,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-23 13:08:55,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:08:55,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:08:55,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:08:55,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:08:55,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:08:55,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:08:55,037 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:08:55,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:08:55,038 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:08:55,038 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:08:55,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:08:55,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:08:55,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:08:55,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:08:55,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:08:55,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:08:55,041 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 13:08:55,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:08:55,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:08:55,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:08:55,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:08:55,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:08:55,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:08:55,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:08:55,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:55,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:08:55,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:08:55,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:08:55,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:08:55,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:08:55,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:08:55,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:08:55,045 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_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2021-11-23 13:08:55,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:08:55,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:08:55,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:08:55,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:08:55,375 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:08:55,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-23 13:08:55,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/data/bec098bea/bb58dcf1cd464f328db4195b2437a588/FLAGbc228fe02 [2021-11-23 13:08:56,173 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:08:56,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-23 13:08:56,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/data/bec098bea/bb58dcf1cd464f328db4195b2437a588/FLAGbc228fe02 [2021-11-23 13:08:56,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/data/bec098bea/bb58dcf1cd464f328db4195b2437a588 [2021-11-23 13:08:56,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:08:56,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:08:56,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:56,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:08:56,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:08:56,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:56" (1/1) ... [2021-11-23 13:08:56,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d71f55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:56, skipping insertion in model container [2021-11-23 13:08:56,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:56" (1/1) ... [2021-11-23 13:08:56,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:08:56,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:08:56,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-23 13:08:57,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-23 13:08:57,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-23 13:08:57,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-23 13:08:57,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:57,145 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:08:57,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-23 13:08:57,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-23 13:08:57,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-23 13:08:57,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-23 13:08:57,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:57,391 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:08:57,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57 WrapperNode [2021-11-23 13:08:57,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:57,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:57,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:08:57,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:08:57,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,543 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 20, calls inlined = 24, statements flattened = 1187 [2021-11-23 13:08:57,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:57,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:08:57,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:08:57,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:08:57,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:08:57,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:08:57,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:08:57,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:08:57,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (1/1) ... [2021-11-23 13:08:57,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:57,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:57,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:08:57,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:08:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:08:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 13:08:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:08:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:08:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:08:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:08:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:08:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:08:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:08:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:08:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:08:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:08:58,031 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:08:58,032 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:08:59,257 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:08:59,275 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:08:59,275 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 13:08:59,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:59 BoogieIcfgContainer [2021-11-23 13:08:59,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:08:59,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:08:59,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:08:59,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:08:59,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:08:56" (1/3) ... [2021-11-23 13:08:59,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59918f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:59, skipping insertion in model container [2021-11-23 13:08:59,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:57" (2/3) ... [2021-11-23 13:08:59,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59918f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:59, skipping insertion in model container [2021-11-23 13:08:59,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:59" (3/3) ... [2021-11-23 13:08:59,298 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2021-11-23 13:08:59,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:08:59,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-23 13:08:59,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:08:59,369 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 [2021-11-23 13:08:59,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-23 13:08:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 244 states have (on average 1.680327868852459) internal successors, (410), 272 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:08:59,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:59,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:59,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:08:59,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 149889836, now seen corresponding path program 1 times [2021-11-23 13:08:59,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:59,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126821479] [2021-11-23 13:08:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:59,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:59,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:08:59,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126821479] [2021-11-23 13:08:59,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126821479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:59,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:59,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:08:59,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135156688] [2021-11-23 13:08:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:59,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:08:59,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:08:59,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:08:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:08:59,753 INFO L87 Difference]: Start difference. First operand has 273 states, 244 states have (on average 1.680327868852459) internal successors, (410), 272 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:59,816 INFO L93 Difference]: Finished difference Result 536 states and 809 transitions. [2021-11-23 13:08:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:08:59,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 13:08:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:59,833 INFO L225 Difference]: With dead ends: 536 [2021-11-23 13:08:59,833 INFO L226 Difference]: Without dead ends: 253 [2021-11-23 13:08:59,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:08:59,852 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:59,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:08:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-23 13:08:59,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-11-23 13:08:59,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 227 states have (on average 1.3700440528634361) internal successors, (311), 252 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 311 transitions. [2021-11-23 13:08:59,910 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 311 transitions. Word has length 8 [2021-11-23 13:08:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:59,911 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 311 transitions. [2021-11-23 13:08:59,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 311 transitions. [2021-11-23 13:08:59,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 13:08:59,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:59,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:59,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:08:59,913 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:08:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash 149891758, now seen corresponding path program 1 times [2021-11-23 13:08:59,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:59,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542752759] [2021-11-23 13:08:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:59,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:59,947 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:08:59,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854719649] [2021-11-23 13:08:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:59,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:08:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:59,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:08:59,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:09:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:00,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:09:00,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:00,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:09:00,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 13:09:00,264 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 13:09:00,264 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 [2021-11-23 13:09:00,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-23 13:09:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:00,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:00,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:00,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542752759] [2021-11-23 13:09:00,375 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:00,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854719649] [2021-11-23 13:09:00,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854719649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:00,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:00,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:09:00,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62416685] [2021-11-23 13:09:00,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:00,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:09:00,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:00,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:09:00,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:00,385 INFO L87 Difference]: Start difference. First operand 253 states and 311 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) [2021-11-23 13:09:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:01,319 INFO L93 Difference]: Finished difference Result 386 states and 482 transitions. [2021-11-23 13:09:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:09:01,321 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 [2021-11-23 13:09:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:01,324 INFO L225 Difference]: With dead ends: 386 [2021-11-23 13:09:01,324 INFO L226 Difference]: Without dead ends: 384 [2021-11-23 13:09:01,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:09:01,327 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 259 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:01,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 1201 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 13:09:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-23 13:09:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 260. [2021-11-23 13:09:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 234 states have (on average 1.3632478632478633) internal successors, (319), 259 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 319 transitions. [2021-11-23 13:09:01,370 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 319 transitions. Word has length 8 [2021-11-23 13:09:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:01,370 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 319 transitions. [2021-11-23 13:09:01,370 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) [2021-11-23 13:09:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 319 transitions. [2021-11-23 13:09:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:09:01,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:01,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:01,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:01,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-23 13:09:01,602 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:01,603 INFO L85 PathProgramCache]: Analyzing trace with hash 351079904, now seen corresponding path program 1 times [2021-11-23 13:09:01,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:01,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820792857] [2021-11-23 13:09:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:01,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:01,641 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:01,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582622193] [2021-11-23 13:09:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:01,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:01,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:01,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:01,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:09:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:01,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:01,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:01,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:01,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:01,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820792857] [2021-11-23 13:09:01,892 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:01,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582622193] [2021-11-23 13:09:01,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582622193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:01,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:01,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:09:01,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440536849] [2021-11-23 13:09:01,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:01,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:09:01,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:09:01,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:09:01,895 INFO L87 Difference]: Start difference. First operand 260 states and 319 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) [2021-11-23 13:09:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:01,968 INFO L93 Difference]: Finished difference Result 532 states and 659 transitions. [2021-11-23 13:09:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:09:01,969 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 [2021-11-23 13:09:01,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:01,971 INFO L225 Difference]: With dead ends: 532 [2021-11-23 13:09:01,971 INFO L226 Difference]: Without dead ends: 281 [2021-11-23 13:09:01,973 INFO L932 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 [2021-11-23 13:09:01,975 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 9 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:01,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 567 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-23 13:09:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 280. [2021-11-23 13:09:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 254 states have (on average 1.3346456692913387) internal successors, (339), 279 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 339 transitions. [2021-11-23 13:09:01,991 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 339 transitions. Word has length 44 [2021-11-23 13:09:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:01,991 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 339 transitions. [2021-11-23 13:09:01,991 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) [2021-11-23 13:09:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 339 transitions. [2021-11-23 13:09:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:09:01,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:01,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:02,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:02,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:02,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 30874852, now seen corresponding path program 1 times [2021-11-23 13:09:02,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:02,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187569099] [2021-11-23 13:09:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:02,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:02,245 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:02,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166131154] [2021-11-23 13:09:02,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:02,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:02,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:02,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:09:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:02,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:02,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:02,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:02,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:02,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187569099] [2021-11-23 13:09:02,485 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:02,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166131154] [2021-11-23 13:09:02,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166131154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:02,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:02,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:09:02,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119998196] [2021-11-23 13:09:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:02,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:09:02,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:09:02,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:09:02,488 INFO L87 Difference]: Start difference. First operand 280 states and 339 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) [2021-11-23 13:09:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:02,573 INFO L93 Difference]: Finished difference Result 646 states and 790 transitions. [2021-11-23 13:09:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:09:02,574 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 [2021-11-23 13:09:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:02,576 INFO L225 Difference]: With dead ends: 646 [2021-11-23 13:09:02,577 INFO L226 Difference]: Without dead ends: 375 [2021-11-23 13:09:02,578 INFO L932 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 [2021-11-23 13:09:02,579 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 299 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:02,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 986 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-23 13:09:02,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 266. [2021-11-23 13:09:02,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 240 states have (on average 1.325) internal successors, (318), 265 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 318 transitions. [2021-11-23 13:09:02,592 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 318 transitions. Word has length 44 [2021-11-23 13:09:02,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:02,592 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 318 transitions. [2021-11-23 13:09:02,593 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) [2021-11-23 13:09:02,593 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 318 transitions. [2021-11-23 13:09:02,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 13:09:02,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:02,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:02,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:02,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:02,822 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:02,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:02,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1174088982, now seen corresponding path program 1 times [2021-11-23 13:09:02,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:02,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719732557] [2021-11-23 13:09:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:02,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:02,853 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:02,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648927225] [2021-11-23 13:09:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:02,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:02,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:02,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:02,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:09:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:03,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:03,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:03,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:03,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719732557] [2021-11-23 13:09:03,144 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648927225] [2021-11-23 13:09:03,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648927225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:03,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:03,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:09:03,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823249799] [2021-11-23 13:09:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:03,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:09:03,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:09:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:09:03,146 INFO L87 Difference]: Start difference. First operand 266 states and 318 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) [2021-11-23 13:09:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:03,256 INFO L93 Difference]: Finished difference Result 449 states and 540 transitions. [2021-11-23 13:09:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:09:03,257 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 [2021-11-23 13:09:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:03,260 INFO L225 Difference]: With dead ends: 449 [2021-11-23 13:09:03,260 INFO L226 Difference]: Without dead ends: 445 [2021-11-23 13:09:03,261 INFO L932 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 [2021-11-23 13:09:03,262 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 172 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:03,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 851 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-11-23 13:09:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 433. [2021-11-23 13:09:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 407 states have (on average 1.307125307125307) internal successors, (532), 432 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 532 transitions. [2021-11-23 13:09:03,281 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 532 transitions. Word has length 44 [2021-11-23 13:09:03,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:03,282 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 532 transitions. [2021-11-23 13:09:03,282 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) [2021-11-23 13:09:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 532 transitions. [2021-11-23 13:09:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 13:09:03,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:03,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:03,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:03,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:03,502 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:03,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2037020282, now seen corresponding path program 1 times [2021-11-23 13:09:03,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:03,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071698130] [2021-11-23 13:09:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:03,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:03,518 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963709635] [2021-11-23 13:09:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:03,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:03,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:03,520 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:03,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:09:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:03,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:03,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:03,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:03,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:03,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071698130] [2021-11-23 13:09:03,824 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:03,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963709635] [2021-11-23 13:09:03,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963709635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:03,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:03,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:09:03,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737289908] [2021-11-23 13:09:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:03,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:09:03,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:09:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:09:03,827 INFO L87 Difference]: Start difference. First operand 433 states and 532 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) [2021-11-23 13:09:03,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:03,969 INFO L93 Difference]: Finished difference Result 752 states and 934 transitions. [2021-11-23 13:09:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:09:03,969 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 [2021-11-23 13:09:03,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:03,976 INFO L225 Difference]: With dead ends: 752 [2021-11-23 13:09:03,976 INFO L226 Difference]: Without dead ends: 747 [2021-11-23 13:09:03,977 INFO L932 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 [2021-11-23 13:09:03,980 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 237 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:03,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 845 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2021-11-23 13:09:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 730. [2021-11-23 13:09:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 704 states have (on average 1.3181818181818181) internal successors, (928), 729 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 928 transitions. [2021-11-23 13:09:04,011 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 928 transitions. Word has length 45 [2021-11-23 13:09:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:04,012 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 928 transitions. [2021-11-23 13:09:04,013 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) [2021-11-23 13:09:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 928 transitions. [2021-11-23 13:09:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 13:09:04,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:04,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:04,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:04,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 13:09:04,234 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2020678905, now seen corresponding path program 1 times [2021-11-23 13:09:04,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:04,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389874407] [2021-11-23 13:09:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:04,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:04,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:04,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389874407] [2021-11-23 13:09:04,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389874407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:04,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:04,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:09:04,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57494679] [2021-11-23 13:09:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:04,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:09:04,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:09:04,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:09:04,301 INFO L87 Difference]: Start difference. First operand 730 states and 928 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:04,614 INFO L93 Difference]: Finished difference Result 1182 states and 1518 transitions. [2021-11-23 13:09:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:09:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2021-11-23 13:09:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:04,621 INFO L225 Difference]: With dead ends: 1182 [2021-11-23 13:09:04,621 INFO L226 Difference]: Without dead ends: 991 [2021-11-23 13:09:04,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:09:04,623 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 120 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:04,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 787 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:09:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2021-11-23 13:09:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 730. [2021-11-23 13:09:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 704 states have (on average 1.3167613636363635) internal successors, (927), 729 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 927 transitions. [2021-11-23 13:09:04,664 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 927 transitions. Word has length 49 [2021-11-23 13:09:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:04,664 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 927 transitions. [2021-11-23 13:09:04,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 927 transitions. [2021-11-23 13:09:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 13:09:04,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:04,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:04,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:09:04,666 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:04,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:04,667 INFO L85 PathProgramCache]: Analyzing trace with hash 291702918, now seen corresponding path program 1 times [2021-11-23 13:09:04,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:04,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178047016] [2021-11-23 13:09:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:04,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:04,704 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:04,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705175470] [2021-11-23 13:09:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:04,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:04,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:04,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:04,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:09:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:04,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:09:04,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:04,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:04,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:04,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178047016] [2021-11-23 13:09:04,960 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:04,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705175470] [2021-11-23 13:09:04,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705175470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:04,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:04,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 13:09:04,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471661109] [2021-11-23 13:09:04,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:04,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:09:04,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:04,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:09:04,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:09:04,964 INFO L87 Difference]: Start difference. First operand 730 states and 927 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) [2021-11-23 13:09:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:04,998 INFO L93 Difference]: Finished difference Result 760 states and 951 transitions. [2021-11-23 13:09:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:09:04,999 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 [2021-11-23 13:09:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:05,004 INFO L225 Difference]: With dead ends: 760 [2021-11-23 13:09:05,004 INFO L226 Difference]: Without dead ends: 758 [2021-11-23 13:09:05,004 INFO L932 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 [2021-11-23 13:09:05,005 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 181 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:05,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 589 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:09:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-23 13:09:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 746. [2021-11-23 13:09:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 720 states have (on average 1.3125) internal successors, (945), 745 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 945 transitions. [2021-11-23 13:09:05,032 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 945 transitions. Word has length 50 [2021-11-23 13:09:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:05,032 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 945 transitions. [2021-11-23 13:09:05,033 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) [2021-11-23 13:09:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 945 transitions. [2021-11-23 13:09:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 13:09:05,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:05,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:05,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:05,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:05,252 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 452856099, now seen corresponding path program 1 times [2021-11-23 13:09:05,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:05,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845680236] [2021-11-23 13:09:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:05,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:05,267 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:05,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642138580] [2021-11-23 13:09:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:05,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:05,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:05,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:05,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:09:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:05,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:09:05,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:05,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:05,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:05,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845680236] [2021-11-23 13:09:05,539 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:05,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642138580] [2021-11-23 13:09:05,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642138580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:05,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:05,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 13:09:05,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160379386] [2021-11-23 13:09:05,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:05,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:09:05,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:09:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:09:05,542 INFO L87 Difference]: Start difference. First operand 746 states and 945 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) [2021-11-23 13:09:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:05,569 INFO L93 Difference]: Finished difference Result 746 states and 945 transitions. [2021-11-23 13:09:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:09:05,570 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 [2021-11-23 13:09:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:05,575 INFO L225 Difference]: With dead ends: 746 [2021-11-23 13:09:05,575 INFO L226 Difference]: Without dead ends: 743 [2021-11-23 13:09:05,575 INFO L932 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 [2021-11-23 13:09:05,576 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 248 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:05,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 292 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:09:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-11-23 13:09:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2021-11-23 13:09:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 720 states have (on average 1.3041666666666667) internal successors, (939), 742 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 939 transitions. [2021-11-23 13:09:05,604 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 939 transitions. Word has length 51 [2021-11-23 13:09:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:05,605 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 939 transitions. [2021-11-23 13:09:05,605 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) [2021-11-23 13:09:05,605 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 939 transitions. [2021-11-23 13:09:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 13:09:05,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:05,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:05,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:05,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:05,822 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:05,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash -315683993, now seen corresponding path program 1 times [2021-11-23 13:09:05,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:05,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797194574] [2021-11-23 13:09:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:05,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:05,837 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:05,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887251960] [2021-11-23 13:09:05,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:05,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:05,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:05,855 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:05,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:09:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:05,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:09:05,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:06,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:06,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:06,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797194574] [2021-11-23 13:09:06,148 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:06,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887251960] [2021-11-23 13:09:06,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887251960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:06,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:06,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:09:06,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064272052] [2021-11-23 13:09:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:06,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:09:06,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:09:06,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:06,151 INFO L87 Difference]: Start difference. First operand 743 states and 939 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) [2021-11-23 13:09:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:06,391 INFO L93 Difference]: Finished difference Result 1422 states and 1788 transitions. [2021-11-23 13:09:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:09:06,392 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 [2021-11-23 13:09:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:06,401 INFO L225 Difference]: With dead ends: 1422 [2021-11-23 13:09:06,401 INFO L226 Difference]: Without dead ends: 1416 [2021-11-23 13:09:06,402 INFO L932 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 [2021-11-23 13:09:06,403 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 774 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:06,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 1064 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:09:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2021-11-23 13:09:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1085. [2021-11-23 13:09:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1062 states have (on average 1.283427495291902) internal successors, (1363), 1084 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1363 transitions. [2021-11-23 13:09:06,455 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1363 transitions. Word has length 55 [2021-11-23 13:09:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:06,457 INFO L470 AbstractCegarLoop]: Abstraction has 1085 states and 1363 transitions. [2021-11-23 13:09:06,457 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) [2021-11-23 13:09:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1363 transitions. [2021-11-23 13:09:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 13:09:06,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:06,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:06,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:06,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 13:09:06,682 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -298265703, now seen corresponding path program 1 times [2021-11-23 13:09:06,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:06,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764870691] [2021-11-23 13:09:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:06,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:06,708 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880423195] [2021-11-23 13:09:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:06,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:06,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:06,718 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:06,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:09:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:06,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:09:06,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:07,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:07,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:07,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764870691] [2021-11-23 13:09:07,088 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:07,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880423195] [2021-11-23 13:09:07,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880423195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:07,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:07,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:09:07,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797910234] [2021-11-23 13:09:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:07,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:09:07,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:07,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:09:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:09:07,092 INFO L87 Difference]: Start difference. First operand 1085 states and 1363 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) [2021-11-23 13:09:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:07,205 INFO L93 Difference]: Finished difference Result 2421 states and 3061 transitions. [2021-11-23 13:09:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:09:07,206 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 [2021-11-23 13:09:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:07,214 INFO L225 Difference]: With dead ends: 2421 [2021-11-23 13:09:07,214 INFO L226 Difference]: Without dead ends: 1345 [2021-11-23 13:09:07,216 INFO L932 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 [2021-11-23 13:09:07,217 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 146 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:07,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2021-11-23 13:09:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1311. [2021-11-23 13:09:07,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1288 states have (on average 1.2942546583850931) internal successors, (1667), 1310 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1667 transitions. [2021-11-23 13:09:07,269 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1667 transitions. Word has length 58 [2021-11-23 13:09:07,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:07,270 INFO L470 AbstractCegarLoop]: Abstraction has 1311 states and 1667 transitions. [2021-11-23 13:09:07,270 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) [2021-11-23 13:09:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1667 transitions. [2021-11-23 13:09:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 13:09:07,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:07,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:07,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:07,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:07,494 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:07,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:07,494 INFO L85 PathProgramCache]: Analyzing trace with hash -279572905, now seen corresponding path program 1 times [2021-11-23 13:09:07,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:07,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16447795] [2021-11-23 13:09:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:07,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:07,511 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:07,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95965974] [2021-11-23 13:09:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:07,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:07,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:07,513 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:07,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:09:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:07,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:07,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:07,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:07,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16447795] [2021-11-23 13:09:07,828 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:07,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95965974] [2021-11-23 13:09:07,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95965974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:07,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:07,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:09:07,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886236276] [2021-11-23 13:09:07,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:07,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:09:07,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:09:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:09:07,830 INFO L87 Difference]: Start difference. First operand 1311 states and 1667 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) [2021-11-23 13:09:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:07,872 INFO L93 Difference]: Finished difference Result 1343 states and 1705 transitions. [2021-11-23 13:09:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:09:07,873 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 [2021-11-23 13:09:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:07,881 INFO L225 Difference]: With dead ends: 1343 [2021-11-23 13:09:07,881 INFO L226 Difference]: Without dead ends: 1342 [2021-11-23 13:09:07,882 INFO L932 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 [2021-11-23 13:09:07,882 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 76 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:07,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 600 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:09:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-11-23 13:09:07,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1339. [2021-11-23 13:09:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1316 states have (on average 1.291033434650456) internal successors, (1699), 1338 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1699 transitions. [2021-11-23 13:09:07,935 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1699 transitions. Word has length 61 [2021-11-23 13:09:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:07,936 INFO L470 AbstractCegarLoop]: Abstraction has 1339 states and 1699 transitions. [2021-11-23 13:09:07,936 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) [2021-11-23 13:09:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1699 transitions. [2021-11-23 13:09:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 13:09:07,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:07,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:07,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:08,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 13:09:08,158 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:08,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:08,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1057410782, now seen corresponding path program 1 times [2021-11-23 13:09:08,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:08,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959135671] [2021-11-23 13:09:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:08,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:08,173 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:08,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869893682] [2021-11-23 13:09:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:08,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:08,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:08,174 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:08,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:09:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:08,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:09:08,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:08,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:08,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:08,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959135671] [2021-11-23 13:09:08,499 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:08,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869893682] [2021-11-23 13:09:08,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869893682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:08,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:08,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:09:08,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027934658] [2021-11-23 13:09:08,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:08,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:09:08,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:08,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:09:08,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:08,501 INFO L87 Difference]: Start difference. First operand 1339 states and 1699 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:08,770 INFO L93 Difference]: Finished difference Result 2384 states and 3041 transitions. [2021-11-23 13:09:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:09:08,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2021-11-23 13:09:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:08,784 INFO L225 Difference]: With dead ends: 2384 [2021-11-23 13:09:08,784 INFO L226 Difference]: Without dead ends: 2378 [2021-11-23 13:09:08,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:09:08,787 INFO L933 BasicCegarLoop]: 653 mSDtfsCounter, 629 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:08,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2454 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:09:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2021-11-23 13:09:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1575. [2021-11-23 13:09:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 1552 states have (on average 1.285438144329897) internal successors, (1995), 1574 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 1995 transitions. [2021-11-23 13:09:08,856 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 1995 transitions. Word has length 79 [2021-11-23 13:09:08,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:08,857 INFO L470 AbstractCegarLoop]: Abstraction has 1575 states and 1995 transitions. [2021-11-23 13:09:08,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 1995 transitions. [2021-11-23 13:09:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 13:09:08,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:08,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:08,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:09,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 13:09:09,085 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1981621477, now seen corresponding path program 1 times [2021-11-23 13:09:09,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:09,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929758025] [2021-11-23 13:09:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:09,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:09,110 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:09,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841854116] [2021-11-23 13:09:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:09,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:09,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:09,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:09,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 13:09:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:09,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:09:09,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:09,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:09,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:09,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929758025] [2021-11-23 13:09:09,487 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:09,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841854116] [2021-11-23 13:09:09,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841854116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:09,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:09,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:09:09,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609878912] [2021-11-23 13:09:09,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:09,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:09:09,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:09,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:09:09,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:09:09,489 INFO L87 Difference]: Start difference. First operand 1575 states and 1995 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) [2021-11-23 13:09:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:09,717 INFO L93 Difference]: Finished difference Result 3254 states and 4137 transitions. [2021-11-23 13:09:09,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:09:09,718 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 [2021-11-23 13:09:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:09,728 INFO L225 Difference]: With dead ends: 3254 [2021-11-23 13:09:09,729 INFO L226 Difference]: Without dead ends: 1751 [2021-11-23 13:09:09,731 INFO L932 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 [2021-11-23 13:09:09,732 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 431 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:09,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 2310 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:09:09,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-11-23 13:09:09,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1578. [2021-11-23 13:09:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1555 states have (on average 1.2913183279742766) internal successors, (2008), 1577 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2008 transitions. [2021-11-23 13:09:09,797 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2008 transitions. Word has length 81 [2021-11-23 13:09:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:09,798 INFO L470 AbstractCegarLoop]: Abstraction has 1578 states and 2008 transitions. [2021-11-23 13:09:09,798 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) [2021-11-23 13:09:09,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2008 transitions. [2021-11-23 13:09:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 13:09:09,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:09,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:09,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:10,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 13:09:10,026 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:10,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2123071426, now seen corresponding path program 1 times [2021-11-23 13:09:10,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:10,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442198786] [2021-11-23 13:09:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:10,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:10,044 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:10,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056819413] [2021-11-23 13:09:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:10,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:10,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:10,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:10,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 13:09:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:10,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 13:09:10,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:10,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:09:10,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442198786] [2021-11-23 13:09:10,568 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056819413] [2021-11-23 13:09:10,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056819413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:10,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:10,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:09:10,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691438347] [2021-11-23 13:09:10,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:10,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:09:10,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:10,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:09:10,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:09:10,571 INFO L87 Difference]: Start difference. First operand 1578 states and 2008 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 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) [2021-11-23 13:09:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:11,315 INFO L93 Difference]: Finished difference Result 4003 states and 5133 transitions. [2021-11-23 13:09:11,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:09:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 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 [2021-11-23 13:09:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:11,329 INFO L225 Difference]: With dead ends: 4003 [2021-11-23 13:09:11,330 INFO L226 Difference]: Without dead ends: 2488 [2021-11-23 13:09:11,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2021-11-23 13:09:11,335 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1411 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:11,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 1450 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:09:11,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-11-23 13:09:11,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 1584. [2021-11-23 13:09:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1561 states have (on average 1.2901985906470212) internal successors, (2014), 1583 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2014 transitions. [2021-11-23 13:09:11,408 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2014 transitions. Word has length 83 [2021-11-23 13:09:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:11,409 INFO L470 AbstractCegarLoop]: Abstraction has 1584 states and 2014 transitions. [2021-11-23 13:09:11,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 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) [2021-11-23 13:09:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2014 transitions. [2021-11-23 13:09:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 13:09:11,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:11,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:11,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:11,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 13:09:11,624 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:11,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2037508069, now seen corresponding path program 1 times [2021-11-23 13:09:11,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:11,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279062181] [2021-11-23 13:09:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:11,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:11,640 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236315204] [2021-11-23 13:09:11,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:11,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:11,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:11,642 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:11,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 13:09:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:11,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 13:09:11,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:12,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:12,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:12,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279062181] [2021-11-23 13:09:12,395 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:12,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236315204] [2021-11-23 13:09:12,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236315204] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:09:12,395 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:09:12,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2021-11-23 13:09:12,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901639382] [2021-11-23 13:09:12,396 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:09:12,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:09:12,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:12,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:09:12,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:09:12,398 INFO L87 Difference]: Start difference. First operand 1584 states and 2014 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:13,942 INFO L93 Difference]: Finished difference Result 4731 states and 6066 transitions. [2021-11-23 13:09:13,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 13:09:13,944 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-23 13:09:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:13,963 INFO L225 Difference]: With dead ends: 4731 [2021-11-23 13:09:13,964 INFO L226 Difference]: Without dead ends: 3211 [2021-11-23 13:09:13,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=375, Invalid=885, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 13:09:13,969 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 2767 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:13,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2767 Valid, 2722 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 13:09:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2021-11-23 13:09:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 1610. [2021-11-23 13:09:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1587 states have (on average 1.285444234404537) internal successors, (2040), 1609 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:14,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2040 transitions. [2021-11-23 13:09:14,060 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2040 transitions. Word has length 84 [2021-11-23 13:09:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:14,061 INFO L470 AbstractCegarLoop]: Abstraction has 1610 states and 2040 transitions. [2021-11-23 13:09:14,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2040 transitions. [2021-11-23 13:09:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 13:09:14,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:14,063 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-11-23 13:09:14,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:14,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:14,286 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:14,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1900832350, now seen corresponding path program 1 times [2021-11-23 13:09:14,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:14,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610308114] [2021-11-23 13:09:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:14,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:14,309 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:14,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176585873] [2021-11-23 13:09:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:14,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:14,311 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:14,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 13:09:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:14,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 13:09:14,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 13:09:14,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 13:09:15,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:09:15,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610308114] [2021-11-23 13:09:15,022 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:09:15,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176585873] [2021-11-23 13:09:15,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176585873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:09:15,023 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:09:15,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2021-11-23 13:09:15,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525662887] [2021-11-23 13:09:15,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:09:15,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:09:15,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:09:15,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:09:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:09:15,030 INFO L87 Difference]: Start difference. First operand 1610 states and 2040 transitions. Second operand has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:18,212 INFO L93 Difference]: Finished difference Result 4842 states and 6213 transitions. [2021-11-23 13:09:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-23 13:09:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-23 13:09:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:18,229 INFO L225 Difference]: With dead ends: 4842 [2021-11-23 13:09:18,229 INFO L226 Difference]: Without dead ends: 3244 [2021-11-23 13:09:18,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=890, Invalid=2416, Unknown=0, NotChecked=0, Total=3306 [2021-11-23 13:09:18,234 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1950 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:18,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1950 Valid, 3015 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 13:09:18,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2021-11-23 13:09:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 1637. [2021-11-23 13:09:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1637 states, 1614 states have (on average 1.2763320941759604) internal successors, (2060), 1636 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2060 transitions. [2021-11-23 13:09:18,321 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2060 transitions. Word has length 89 [2021-11-23 13:09:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:18,321 INFO L470 AbstractCegarLoop]: Abstraction has 1637 states and 2060 transitions. [2021-11-23 13:09:18,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2060 transitions. [2021-11-23 13:09:18,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 13:09:18,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:18,323 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:18,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:18,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 13:09:18,538 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-11-23 13:09:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:18,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1236929471, now seen corresponding path program 2 times [2021-11-23 13:09:18,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:09:18,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47989629] [2021-11-23 13:09:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:18,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:09:18,553 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:09:18,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750946138] [2021-11-23 13:09:18,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:09:18,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:09:18,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:18,555 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:09:18,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93f6ca1c-99fd-4783-8e33-515db16c5b79/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process