./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/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 ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:06:50,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:06:50,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:06:50,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:06:50,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:06:50,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:06:50,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:06:50,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:06:50,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:06:50,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:06:50,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:06:50,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:06:50,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:06:50,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:06:50,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:06:50,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:06:50,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:06:50,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:06:50,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:06:50,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:06:50,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:06:50,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:06:50,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:06:50,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:06:50,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:06:50,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:06:50,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:06:50,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:06:50,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:06:50,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:06:50,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:06:50,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:06:50,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:06:50,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:06:50,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:06:50,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:06:50,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:06:50,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:06:50,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:06:50,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:06:50,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:06:50,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-23 13:06:50,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:06:50,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:06:50,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:06:50,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:06:50,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:06:50,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:06:50,443 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:06:50,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:06:50,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:06:50,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:06:50,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:06:50,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:06:50,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:06:50,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:06:50,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:06:50,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:06:50,446 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 13:06:50,446 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:06:50,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:06:50,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:06:50,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:06:50,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:06:50,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:06:50,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:06:50,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:06:50,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:06:50,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:06:50,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:06:50,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:06:50,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:06:50,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:06:50,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:06:50,451 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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce6a3162e09155ad765d255c42023f1cbec9d995c66c63f43c14fadd8640484e [2021-11-23 13:06:50,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:06:50,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:06:50,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:06:50,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:06:50,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:06:50,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2021-11-23 13:06:50,888 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/data/4fd6a5e49/1dcfda076e974b2fac13bafb7036214e/FLAG22758f4f8 [2021-11-23 13:06:51,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:06:51,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i [2021-11-23 13:06:51,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/data/4fd6a5e49/1dcfda076e974b2fac13bafb7036214e/FLAG22758f4f8 [2021-11-23 13:06:51,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/data/4fd6a5e49/1dcfda076e974b2fac13bafb7036214e [2021-11-23 13:06:51,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:06:51,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:06:51,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:06:51,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:06:51,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:06:51,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:51" (1/1) ... [2021-11-23 13:06:51,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12acf121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:51, skipping insertion in model container [2021-11-23 13:06:51,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:51" (1/1) ... [2021-11-23 13:06:51,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:06:51,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:06:52,457 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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2021-11-23 13:06:52,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:06:52,782 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:06:52,832 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_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-1.i[33022,33035] [2021-11-23 13:06:53,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:06:53,059 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:06:53,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53 WrapperNode [2021-11-23 13:06:53,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:06:53,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:06:53,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:06:53,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:06:53,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,250 INFO L137 Inliner]: procedures = 177, calls = 524, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 2357 [2021-11-23 13:06:53,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:06:53,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:06:53,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:06:53,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:06:53,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:06:53,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:06:53,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:06:53,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:06:53,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (1/1) ... [2021-11-23 13:06:53,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:06:53,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:53,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:06:53,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:06:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:06:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:06:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:06:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:06:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:06:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:06:53,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:06:53,894 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:06:53,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:06:55,760 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:06:55,772 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:06:55,772 INFO L301 CfgBuilder]: Removed 151 assume(true) statements. [2021-11-23 13:06:55,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:55 BoogieIcfgContainer [2021-11-23 13:06:55,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:06:55,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:06:55,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:06:55,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:06:55,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:06:51" (1/3) ... [2021-11-23 13:06:55,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab134d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:06:55, skipping insertion in model container [2021-11-23 13:06:55,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:53" (2/3) ... [2021-11-23 13:06:55,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab134d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:06:55, skipping insertion in model container [2021-11-23 13:06:55,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:55" (3/3) ... [2021-11-23 13:06:55,784 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-1.i [2021-11-23 13:06:55,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:06:55,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-23 13:06:55,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:06:55,851 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 13:06:55,851 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-23 13:06:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 478 states, 465 states have (on average 1.718279569892473) internal successors, (799), 477 states have internal predecessors, (799), 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 13:06:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:06:55,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:55,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:55,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:06:55,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1757860351, now seen corresponding path program 1 times [2021-11-23 13:06:55,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:55,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648685058] [2021-11-23 13:06:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:55,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:56,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:56,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648685058] [2021-11-23 13:06:56,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648685058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:56,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:56,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:06:56,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952144613] [2021-11-23 13:06:56,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:56,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:06:56,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:06:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:06:56,124 INFO L87 Difference]: Start difference. First operand has 478 states, 465 states have (on average 1.718279569892473) internal successors, (799), 477 states have internal predecessors, (799), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:56,207 INFO L93 Difference]: Finished difference Result 954 states and 1596 transitions. [2021-11-23 13:06:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:06:56,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 13:06:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:56,233 INFO L225 Difference]: With dead ends: 954 [2021-11-23 13:06:56,233 INFO L226 Difference]: Without dead ends: 461 [2021-11-23 13:06:56,243 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 13:06:56,250 INFO L933 BasicCegarLoop]: 625 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, 625 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 13:06:56,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-23 13:06:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2021-11-23 13:06:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 449 states have (on average 1.3452115812917596) internal successors, (604), 460 states have internal predecessors, (604), 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 13:06:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 604 transitions. [2021-11-23 13:06:56,323 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 604 transitions. Word has length 7 [2021-11-23 13:06:56,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:56,323 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 604 transitions. [2021-11-23 13:06:56,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 604 transitions. [2021-11-23 13:06:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 13:06:56,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:56,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:56,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:06:56,325 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:06:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:56,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1805953417, now seen corresponding path program 1 times [2021-11-23 13:06:56,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:56,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742609119] [2021-11-23 13:06:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:56,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:56,366 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:06:56,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351124475] [2021-11-23 13:06:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:56,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:56,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:56,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:56,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:06:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:56,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:06:56,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:06:56,666 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 13:06:56,674 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 13:06:56,726 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 13:06:56,731 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 13:06:56,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-23 13:06:56,804 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 13:06:56,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:06:56,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:56,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742609119] [2021-11-23 13:06:56,805 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:06:56,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351124475] [2021-11-23 13:06:56,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351124475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:56,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:56,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:56,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960849865] [2021-11-23 13:06:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:56,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:56,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:56,813 INFO L87 Difference]: Start difference. First operand 461 states and 604 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:59,005 INFO L93 Difference]: Finished difference Result 553 states and 726 transitions. [2021-11-23 13:06:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:06:59,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 13:06:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:59,010 INFO L225 Difference]: With dead ends: 553 [2021-11-23 13:06:59,010 INFO L226 Difference]: Without dead ends: 551 [2021-11-23 13:06:59,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:59,012 INFO L933 BasicCegarLoop]: 555 mSDtfsCounter, 201 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:59,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1974 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 13:06:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-11-23 13:06:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 467. [2021-11-23 13:06:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 455 states have (on average 1.3428571428571427) internal successors, (611), 466 states have internal predecessors, (611), 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 13:06:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 611 transitions. [2021-11-23 13:06:59,050 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 611 transitions. Word has length 7 [2021-11-23 13:06:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:59,051 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 611 transitions. [2021-11-23 13:06:59,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 611 transitions. [2021-11-23 13:06:59,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:06:59,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:59,055 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] [2021-11-23 13:06:59,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:06:59,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:59,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:06:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:59,273 INFO L85 PathProgramCache]: Analyzing trace with hash -723726499, now seen corresponding path program 1 times [2021-11-23 13:06:59,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:59,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175456672] [2021-11-23 13:06:59,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:59,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:59,341 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 13:06:59,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:59,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175456672] [2021-11-23 13:06:59,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175456672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:59,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:59,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:59,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857835704] [2021-11-23 13:06:59,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:59,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:06:59,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:59,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:06:59,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:06:59,344 INFO L87 Difference]: Start difference. First operand 467 states and 611 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 13:06:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:59,865 INFO L93 Difference]: Finished difference Result 746 states and 977 transitions. [2021-11-23 13:06:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:06:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-23 13:06:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:59,868 INFO L225 Difference]: With dead ends: 746 [2021-11-23 13:06:59,869 INFO L226 Difference]: Without dead ends: 467 [2021-11-23 13:06:59,869 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 13:06:59,871 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 3 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:59,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1639 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:06:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-23 13:06:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2021-11-23 13:06:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 455 states have (on average 1.3406593406593406) internal successors, (610), 466 states have internal predecessors, (610), 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 13:06:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 610 transitions. [2021-11-23 13:06:59,901 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 610 transitions. Word has length 42 [2021-11-23 13:06:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:59,902 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 610 transitions. [2021-11-23 13:06:59,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 13:06:59,902 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 610 transitions. [2021-11-23 13:06:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 13:06:59,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:59,905 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 13:06:59,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:06:59,905 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:06:59,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1626753544, now seen corresponding path program 1 times [2021-11-23 13:06:59,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:59,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200445265] [2021-11-23 13:06:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:59,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:59,930 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:06:59,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292407483] [2021-11-23 13:06:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:59,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:59,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:59,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:07:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:00,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:07:00,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:00,280 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 13:07:00,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:00,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:00,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200445265] [2021-11-23 13:07:00,282 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:00,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292407483] [2021-11-23 13:07:00,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292407483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:00,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:00,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:07:00,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411985841] [2021-11-23 13:07:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:00,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:07:00,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:07:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:07:00,286 INFO L87 Difference]: Start difference. First operand 467 states and 610 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 13:07:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:00,358 INFO L93 Difference]: Finished difference Result 947 states and 1243 transitions. [2021-11-23 13:07:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:07:00,358 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 13:07:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:00,361 INFO L225 Difference]: With dead ends: 947 [2021-11-23 13:07:00,361 INFO L226 Difference]: Without dead ends: 488 [2021-11-23 13:07:00,362 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 13:07:00,366 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 9 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1153 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 13:07:00,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1153 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-23 13:07:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2021-11-23 13:07:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 475 states have (on average 1.3263157894736841) internal successors, (630), 486 states have internal predecessors, (630), 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 13:07:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 630 transitions. [2021-11-23 13:07:00,384 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 630 transitions. Word has length 58 [2021-11-23 13:07:00,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:00,384 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 630 transitions. [2021-11-23 13:07:00,384 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 13:07:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 630 transitions. [2021-11-23 13:07:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 13:07:00,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:00,390 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 13:07:00,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 13:07:00,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:00,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1901513158, now seen corresponding path program 1 times [2021-11-23 13:07:00,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:00,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130372854] [2021-11-23 13:07:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:00,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:00,624 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:00,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752774621] [2021-11-23 13:07:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:00,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:00,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:00,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:00,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:07:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:00,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:07:00,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:00,966 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 13:07:00,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:00,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:00,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130372854] [2021-11-23 13:07:00,967 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:00,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752774621] [2021-11-23 13:07:00,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752774621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:00,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:00,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:07:00,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272287034] [2021-11-23 13:07:00,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:00,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:07:00,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:00,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:07:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:07:00,970 INFO L87 Difference]: Start difference. First operand 487 states and 630 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 13:07:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:01,059 INFO L93 Difference]: Finished difference Result 1040 states and 1354 transitions. [2021-11-23 13:07:01,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:07:01,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 13:07:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:01,064 INFO L225 Difference]: With dead ends: 1040 [2021-11-23 13:07:01,064 INFO L226 Difference]: Without dead ends: 561 [2021-11-23 13:07:01,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 13:07:01,066 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 592 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1506 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 13:07:01,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 1506 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-23 13:07:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 473. [2021-11-23 13:07:01,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 461 states have (on average 1.3210412147505424) internal successors, (609), 472 states have internal predecessors, (609), 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 13:07:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 609 transitions. [2021-11-23 13:07:01,083 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 609 transitions. Word has length 58 [2021-11-23 13:07:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:01,084 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 609 transitions. [2021-11-23 13:07:01,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 13:07:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 609 transitions. [2021-11-23 13:07:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 13:07:01,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:01,086 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 13:07:01,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 13:07:01,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:01,302 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:01,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 122423020, now seen corresponding path program 1 times [2021-11-23 13:07:01,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:01,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013880002] [2021-11-23 13:07:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:01,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:01,324 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:01,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592458396] [2021-11-23 13:07:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:01,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:01,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:01,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:07:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:01,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:07:01,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:01,796 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 13:07:01,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:01,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:01,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013880002] [2021-11-23 13:07:01,798 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:01,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592458396] [2021-11-23 13:07:01,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592458396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:01,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:01,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:07:01,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777264854] [2021-11-23 13:07:01,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:01,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:07:01,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:07:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:07:01,803 INFO L87 Difference]: Start difference. First operand 473 states and 609 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 13:07:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:01,914 INFO L93 Difference]: Finished difference Result 1201 states and 1546 transitions. [2021-11-23 13:07:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:07:01,914 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 13:07:01,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:01,921 INFO L225 Difference]: With dead ends: 1201 [2021-11-23 13:07:01,921 INFO L226 Difference]: Without dead ends: 736 [2021-11-23 13:07:01,922 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 13:07:01,923 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 305 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:01,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-11-23 13:07:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 725. [2021-11-23 13:07:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 713 states have (on average 1.3141654978962132) internal successors, (937), 724 states have internal predecessors, (937), 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 13:07:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 937 transitions. [2021-11-23 13:07:01,953 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 937 transitions. Word has length 58 [2021-11-23 13:07:01,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:01,954 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 937 transitions. [2021-11-23 13:07:01,954 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 13:07:01,954 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 937 transitions. [2021-11-23 13:07:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 13:07:01,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:01,957 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] [2021-11-23 13:07:01,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 13:07:02,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:02,170 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:02,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2142666769, now seen corresponding path program 1 times [2021-11-23 13:07:02,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:02,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259166587] [2021-11-23 13:07:02,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:02,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:02,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:02,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420545893] [2021-11-23 13:07:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:02,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:02,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:02,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:07:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:02,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:07:02,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:02,468 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 13:07:02,474 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 13:07:02,503 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 13:07:02,504 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 13:07:02,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2021-11-23 13:07:02,601 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 13:07:02,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 57 treesize of output 41 [2021-11-23 13:07:02,734 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 13:07:02,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:02,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:02,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259166587] [2021-11-23 13:07:02,735 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:02,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420545893] [2021-11-23 13:07:02,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420545893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:02,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:02,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:07:02,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731117431] [2021-11-23 13:07:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:02,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:07:02,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:07:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:07:02,738 INFO L87 Difference]: Start difference. First operand 725 states and 937 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 13:07:04,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:04,265 INFO L93 Difference]: Finished difference Result 1360 states and 1757 transitions. [2021-11-23 13:07:04,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:07:04,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-11-23 13:07:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:04,270 INFO L225 Difference]: With dead ends: 1360 [2021-11-23 13:07:04,270 INFO L226 Difference]: Without dead ends: 727 [2021-11-23 13:07:04,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:07:04,272 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 99 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:04,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 2434 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 13:07:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-11-23 13:07:04,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 725. [2021-11-23 13:07:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 713 states have (on average 1.3127629733520336) internal successors, (936), 724 states have internal predecessors, (936), 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 13:07:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 936 transitions. [2021-11-23 13:07:04,296 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 936 transitions. Word has length 65 [2021-11-23 13:07:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:04,297 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 936 transitions. [2021-11-23 13:07:04,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 13:07:04,297 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 936 transitions. [2021-11-23 13:07:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 13:07:04,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:04,299 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, 1, 1, 1, 1, 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 13:07:04,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:04,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:04,526 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -961249944, now seen corresponding path program 1 times [2021-11-23 13:07:04,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:04,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141996621] [2021-11-23 13:07:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:04,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:04,547 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:04,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175880970] [2021-11-23 13:07:04,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:04,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:04,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:04,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:07:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:04,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:07:04,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:04,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:04,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141996621] [2021-11-23 13:07:04,963 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175880970] [2021-11-23 13:07:04,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175880970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:04,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:04,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:07:04,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451530951] [2021-11-23 13:07:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:04,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:07:04,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:07:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:07:04,966 INFO L87 Difference]: Start difference. First operand 725 states and 936 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 13:07:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:05,063 INFO L93 Difference]: Finished difference Result 1472 states and 1911 transitions. [2021-11-23 13:07:05,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:07:05,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2021-11-23 13:07:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:05,068 INFO L225 Difference]: With dead ends: 1472 [2021-11-23 13:07:05,068 INFO L226 Difference]: Without dead ends: 767 [2021-11-23 13:07:05,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 13:07:05,071 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 9 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1139 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 13:07:05,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1139 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-11-23 13:07:05,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2021-11-23 13:07:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 753 states have (on average 1.296148738379814) internal successors, (976), 764 states have internal predecessors, (976), 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 13:07:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 976 transitions. [2021-11-23 13:07:05,094 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 976 transitions. Word has length 112 [2021-11-23 13:07:05,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:05,094 INFO L470 AbstractCegarLoop]: Abstraction has 765 states and 976 transitions. [2021-11-23 13:07:05,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 13:07:05,095 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 976 transitions. [2021-11-23 13:07:05,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 13:07:05,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:05,096 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, 1, 1, 1, 1, 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 13:07:05,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:05,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 13:07:05,321 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:05,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:05,321 INFO L85 PathProgramCache]: Analyzing trace with hash 657724970, now seen corresponding path program 1 times [2021-11-23 13:07:05,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:05,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526002361] [2021-11-23 13:07:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:05,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:05,354 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:05,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286406937] [2021-11-23 13:07:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:05,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:05,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:05,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:05,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:07:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:05,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:07:05,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:05,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:05,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:05,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526002361] [2021-11-23 13:07:05,753 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:05,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286406937] [2021-11-23 13:07:05,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286406937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:05,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:05,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:07:05,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102545684] [2021-11-23 13:07:05,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:05,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:07:05,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:05,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:07:05,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:07:05,757 INFO L87 Difference]: Start difference. First operand 765 states and 976 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:07:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:05,850 INFO L93 Difference]: Finished difference Result 1466 states and 1876 transitions. [2021-11-23 13:07:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:07:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 112 [2021-11-23 13:07:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:05,856 INFO L225 Difference]: With dead ends: 1466 [2021-11-23 13:07:05,857 INFO L226 Difference]: Without dead ends: 739 [2021-11-23 13:07:05,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 13:07:05,860 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 585 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1159 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 13:07:05,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1159 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-11-23 13:07:05,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 737. [2021-11-23 13:07:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 725 states have (on average 1.2882758620689656) internal successors, (934), 736 states have internal predecessors, (934), 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 13:07:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 934 transitions. [2021-11-23 13:07:05,888 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 934 transitions. Word has length 112 [2021-11-23 13:07:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:05,889 INFO L470 AbstractCegarLoop]: Abstraction has 737 states and 934 transitions. [2021-11-23 13:07:05,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:07:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 934 transitions. [2021-11-23 13:07:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-23 13:07:05,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:05,891 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, 1, 1, 1, 1, 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 13:07:05,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:06,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:06,106 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash -734122660, now seen corresponding path program 1 times [2021-11-23 13:07:06,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:06,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061279024] [2021-11-23 13:07:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:06,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:06,124 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:06,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104867410] [2021-11-23 13:07:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:06,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:06,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:06,125 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:06,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:07:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:06,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:07:06,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:06,697 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 13:07:06,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:06,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061279024] [2021-11-23 13:07:06,698 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104867410] [2021-11-23 13:07:06,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104867410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:06,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:06,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:07:06,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160799126] [2021-11-23 13:07:06,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:06,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:07:06,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:07:06,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:07:06,704 INFO L87 Difference]: Start difference. First operand 737 states and 934 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 13:07:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:06,809 INFO L93 Difference]: Finished difference Result 1732 states and 2217 transitions. [2021-11-23 13:07:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:07:06,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2021-11-23 13:07:06,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:06,816 INFO L225 Difference]: With dead ends: 1732 [2021-11-23 13:07:06,816 INFO L226 Difference]: Without dead ends: 1055 [2021-11-23 13:07:06,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 13:07:06,818 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 290 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:06,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1151 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2021-11-23 13:07:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 916. [2021-11-23 13:07:06,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 904 states have (on average 1.2975663716814159) internal successors, (1173), 915 states have internal predecessors, (1173), 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 13:07:06,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1173 transitions. [2021-11-23 13:07:06,856 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1173 transitions. Word has length 112 [2021-11-23 13:07:06,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:06,857 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1173 transitions. [2021-11-23 13:07:06,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 13:07:06,857 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1173 transitions. [2021-11-23 13:07:06,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 13:07:06,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:06,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:06,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:07,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:07,082 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:07,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash -45356340, now seen corresponding path program 1 times [2021-11-23 13:07:07,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:07,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890080624] [2021-11-23 13:07:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:07,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:07,098 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:07,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31893657] [2021-11-23 13:07:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:07,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:07,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:07,099 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:07,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:07:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:07,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 13:07:07,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:07,681 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 13:07:07,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:07:07,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:07,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890080624] [2021-11-23 13:07:07,682 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:07,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31893657] [2021-11-23 13:07:07,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31893657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:07,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:07,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:07:07,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907906626] [2021-11-23 13:07:07,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:07,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:07:07,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:07:07,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:07:07,685 INFO L87 Difference]: Start difference. First operand 916 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 13:07:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:07,745 INFO L93 Difference]: Finished difference Result 1778 states and 2288 transitions. [2021-11-23 13:07:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:07:07,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2021-11-23 13:07:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:07,752 INFO L225 Difference]: With dead ends: 1778 [2021-11-23 13:07:07,752 INFO L226 Difference]: Without dead ends: 919 [2021-11-23 13:07:07,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 13:07:07,754 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 0 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:07,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:07:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-23 13:07:07,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2021-11-23 13:07:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 907 states have (on average 1.296582138919515) internal successors, (1176), 918 states have internal predecessors, (1176), 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 13:07:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1176 transitions. [2021-11-23 13:07:07,785 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1176 transitions. Word has length 119 [2021-11-23 13:07:07,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:07,786 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1176 transitions. [2021-11-23 13:07:07,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 13:07:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1176 transitions. [2021-11-23 13:07:07,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 13:07:07,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:07,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:07,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:08,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 13:07:08,008 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:08,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1141730047, now seen corresponding path program 1 times [2021-11-23 13:07:08,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:08,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871444702] [2021-11-23 13:07:08,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:08,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:08,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:08,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366365022] [2021-11-23 13:07:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:08,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:08,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:08,037 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:08,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 13:07:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:08,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 13:07:08,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:08,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:07:08,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:07:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:07:09,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:09,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871444702] [2021-11-23 13:07:09,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:09,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366365022] [2021-11-23 13:07:09,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366365022] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:07:09,009 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:07:09,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-23 13:07:09,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53190596] [2021-11-23 13:07:09,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:07:09,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:07:09,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:07:09,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:07:09,011 INFO L87 Difference]: Start difference. First operand 919 states and 1176 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 13:07:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:09,168 INFO L93 Difference]: Finished difference Result 1799 states and 2322 transitions. [2021-11-23 13:07:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:07:09,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 121 [2021-11-23 13:07:09,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:09,174 INFO L225 Difference]: With dead ends: 1799 [2021-11-23 13:07:09,174 INFO L226 Difference]: Without dead ends: 934 [2021-11-23 13:07:09,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:07:09,176 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 0 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:09,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2302 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:07:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-11-23 13:07:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2021-11-23 13:07:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 922 states have (on average 1.29175704989154) internal successors, (1191), 933 states have internal predecessors, (1191), 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 13:07:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1191 transitions. [2021-11-23 13:07:09,206 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1191 transitions. Word has length 121 [2021-11-23 13:07:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:09,207 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1191 transitions. [2021-11-23 13:07:09,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 13:07:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1191 transitions. [2021-11-23 13:07:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-23 13:07:09,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:09,209 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:09,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:09,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 13:07:09,438 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:09,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1622220694, now seen corresponding path program 1 times [2021-11-23 13:07:09,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:09,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951371025] [2021-11-23 13:07:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:09,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:09,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:09,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877982664] [2021-11-23 13:07:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:09,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:09,458 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:09,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 13:07:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:10,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 13:07:10,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 13:07:10,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:07:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 13:07:10,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951371025] [2021-11-23 13:07:10,683 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:07:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877982664] [2021-11-23 13:07:10,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877982664] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:07:10,684 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:07:10,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2021-11-23 13:07:10,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447487320] [2021-11-23 13:07:10,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:07:10,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 13:07:10,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:07:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:07:10,686 INFO L87 Difference]: Start difference. First operand 934 states and 1191 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 13:07:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:11,687 INFO L93 Difference]: Finished difference Result 2670 states and 3448 transitions. [2021-11-23 13:07:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 13:07:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 131 [2021-11-23 13:07:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:11,697 INFO L225 Difference]: With dead ends: 2670 [2021-11-23 13:07:11,697 INFO L226 Difference]: Without dead ends: 1793 [2021-11-23 13:07:11,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-23 13:07:11,700 INFO L933 BasicCegarLoop]: 1140 mSDtfsCounter, 2322 mSDsluCounter, 5851 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 6991 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:11,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2322 Valid, 6991 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:07:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2021-11-23 13:07:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 964. [2021-11-23 13:07:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 952 states have (on average 1.2857142857142858) internal successors, (1224), 963 states have internal predecessors, (1224), 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 13:07:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1224 transitions. [2021-11-23 13:07:11,757 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1224 transitions. Word has length 131 [2021-11-23 13:07:11,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:11,758 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1224 transitions. [2021-11-23 13:07:11,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 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 13:07:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1224 transitions. [2021-11-23 13:07:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-23 13:07:11,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:11,760 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:11,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:11,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:11,986 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-23 13:07:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:11,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1609817844, now seen corresponding path program 2 times [2021-11-23 13:07:11,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:11,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065122770] [2021-11-23 13:07:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:11,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:12,003 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:07:12,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849491289] [2021-11-23 13:07:12,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 13:07:12,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:12,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:12,008 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:12,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a064b9f6-c811-4af6-bf0b-0cdecefdcb14/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process