./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:45:46,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:45:46,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:45:46,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:45:46,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:45:46,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:45:46,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:45:46,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:45:46,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:45:46,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:45:46,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:45:46,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:45:46,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:45:46,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:45:46,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:45:46,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:45:46,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:45:46,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:45:46,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:45:46,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:45:46,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:45:46,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:45:46,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:45:46,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:45:46,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:45:46,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:45:46,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:45:46,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:45:46,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:45:46,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:45:46,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:45:46,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:45:46,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:45:46,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:45:46,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:45:46,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:45:46,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:45:46,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:45:46,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:45:46,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:45:46,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:45:46,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-12 23:45:46,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:45:46,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:45:46,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:45:46,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:45:46,767 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:45:46,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:45:46,768 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:45:46,768 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:45:46,768 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:45:46,769 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:45:46,770 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:45:46,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:45:46,770 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:45:46,770 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:45:46,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:45:46,771 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:45:46,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:45:46,772 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:45:46,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:45:46,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:45:46,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:45:46,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:45:46,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:45:46,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:45:46,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:45:46,773 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-12 23:45:46,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:45:46,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:45:46,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:45:46,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:45:46,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:45:46,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:45:46,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:45:46,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:45:46,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:45:46,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:45:46,777 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:45:46,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:45:46,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:45:46,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:45:46,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:45:46,778 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2021-11-12 23:45:47,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:45:47,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:45:47,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:45:47,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:45:47,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:45:47,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-11-12 23:45:47,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/data/09896629f/bab0f2e488764e76b3dbbb6732597442/FLAG4e67029b6 [2021-11-12 23:45:47,749 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:45:47,750 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-11-12 23:45:47,761 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/data/09896629f/bab0f2e488764e76b3dbbb6732597442/FLAG4e67029b6 [2021-11-12 23:45:48,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/data/09896629f/bab0f2e488764e76b3dbbb6732597442 [2021-11-12 23:45:48,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:45:48,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:45:48,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:45:48,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:45:48,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:45:48,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0075f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48, skipping insertion in model container [2021-11-12 23:45:48,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:45:48,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:45:48,314 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-11-12 23:45:48,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:45:48,329 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:45:48,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-11-12 23:45:48,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:45:48,358 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:45:48,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48 WrapperNode [2021-11-12 23:45:48,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:45:48,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:45:48,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:45:48,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:45:48,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:45:48,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:45:48,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:45:48,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:45:48,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:45:48,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:45:48,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:45:48,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:45:48,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (1/1) ... [2021-11-12 23:45:48,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:45:48,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:48,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:45:48,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:45:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:45:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:45:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:45:48,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:45:48,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:45:48,707 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:45:48,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:45:48 BoogieIcfgContainer [2021-11-12 23:45:48,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:45:48,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:45:48,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:45:48,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:45:48,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:45:48" (1/3) ... [2021-11-12 23:45:48,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1000873f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:45:48, skipping insertion in model container [2021-11-12 23:45:48,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:48" (2/3) ... [2021-11-12 23:45:48,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1000873f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:45:48, skipping insertion in model container [2021-11-12 23:45:48,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:45:48" (3/3) ... [2021-11-12 23:45:48,718 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-11-12 23:45:48,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:45:48,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-12 23:45:48,772 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:45:48,780 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 [2021-11-12 23:45:48,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 23:45:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-12 23:45:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-12 23:45:48,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:48,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-12 23:45:48,815 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:48,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-11-12 23:45:48,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:48,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830400632] [2021-11-12 23:45:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:48,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:48,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:48,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830400632] [2021-11-12 23:45:48,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830400632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:48,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:48,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:45:48,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178920790] [2021-11-12 23:45:48,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:48,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:45:48,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:49,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:45:49,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:45:49,022 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-12 23:45:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:49,062 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-11-12 23:45:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:45:49,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-12 23:45:49,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:49,072 INFO L225 Difference]: With dead ends: 19 [2021-11-12 23:45:49,073 INFO L226 Difference]: Without dead ends: 14 [2021-11-12 23:45:49,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:45:49,079 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.77ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:49,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 23.34ms Time] [2021-11-12 23:45:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-12 23:45:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-11-12 23:45:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-12 23:45:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-12 23:45:49,130 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-11-12 23:45:49,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:49,130 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-12 23:45:49,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-12 23:45:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-12 23:45:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 23:45:49,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:49,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 23:45:49,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:45:49,132 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-11-12 23:45:49,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:49,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158146115] [2021-11-12 23:45:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:49,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:49,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158146115] [2021-11-12 23:45:49,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158146115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:49,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:49,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 23:45:49,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178355379] [2021-11-12 23:45:49,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:49,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:45:49,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:49,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:45:49,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:45:49,202 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-12 23:45:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:49,227 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-12 23:45:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:45:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-12 23:45:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:49,229 INFO L225 Difference]: With dead ends: 13 [2021-11-12 23:45:49,229 INFO L226 Difference]: Without dead ends: 12 [2021-11-12 23:45:49,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:45:49,231 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:49,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 22.25ms Time] [2021-11-12 23:45:49,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-12 23:45:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-12 23:45:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-11-12 23:45:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-12 23:45:49,237 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2021-11-12 23:45:49,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:49,237 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-11-12 23:45:49,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-12 23:45:49,238 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-12 23:45:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:45:49,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:49,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:45:49,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:45:49,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:49,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-11-12 23:45:49,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:49,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632031271] [2021-11-12 23:45:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:49,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,281 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:49,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632031271] [2021-11-12 23:45:49,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632031271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:49,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:49,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:45:49,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765648967] [2021-11-12 23:45:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:49,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:45:49,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:45:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:45:49,285 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-12 23:45:49,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:49,317 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-11-12 23:45:49,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:45:49,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-11-12 23:45:49,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:49,319 INFO L225 Difference]: With dead ends: 17 [2021-11-12 23:45:49,319 INFO L226 Difference]: Without dead ends: 16 [2021-11-12 23:45:49,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:49,322 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:49,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 17 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 19.15ms Time] [2021-11-12 23:45:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-12 23:45:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-11-12 23:45:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-11-12 23:45:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-12 23:45:49,327 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2021-11-12 23:45:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:49,327 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-12 23:45:49,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-12 23:45:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-12 23:45:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 23:45:49,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:49,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:49,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:45:49,329 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:49,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-11-12 23:45:49,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:49,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383766252] [2021-11-12 23:45:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:49,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,366 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:49,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383766252] [2021-11-12 23:45:49,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383766252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:49,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:49,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:45:49,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328374850] [2021-11-12 23:45:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:49,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:45:49,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:45:49,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:45:49,370 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-11-12 23:45:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:49,389 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-11-12 23:45:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:49,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2021-11-12 23:45:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:49,391 INFO L225 Difference]: With dead ends: 14 [2021-11-12 23:45:49,391 INFO L226 Difference]: Without dead ends: 13 [2021-11-12 23:45:49,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:49,393 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.39ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:49,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.39ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 10.70ms Time] [2021-11-12 23:45:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-12 23:45:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-12 23:45:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-12 23:45:49,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-12 23:45:49,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-11-12 23:45:49,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:49,399 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-12 23:45:49,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-11-12 23:45:49,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-12 23:45:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:45:49,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:49,401 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:45:49,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:45:49,401 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:49,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:49,402 INFO L85 PathProgramCache]: Analyzing trace with hash -803359244, now seen corresponding path program 1 times [2021-11-12 23:45:49,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:49,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541037997] [2021-11-12 23:45:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:49,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,489 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:49,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541037997] [2021-11-12 23:45:49,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541037997] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:49,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400148612] [2021-11-12 23:45:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:49,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:49,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:49,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:49,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:45:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:49,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:45:49,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:49,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400148612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:49,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1274110404] [2021-11-12 23:45:49,759 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:45:49,760 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:49,765 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:49,770 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:49,771 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:49,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:49,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:45:49,833 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:49,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:49,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:45:49,873 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-11-12 23:45:49,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:49,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:45:49,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:49,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:49,910 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:49,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:49,946 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:49,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:49,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:45:49,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:49,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:49,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:49,979 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:49,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:45:50,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:50,015 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:45:50,028 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:45:50,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:45:50,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:45:50,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,156 INFO L180 QuantifierPusher]: treesize reduction 29, result has 87.7 percent of original size [2021-11-12 23:45:50,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:45:50,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:45:50,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,294 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:50,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:50,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:50,311 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:50,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:50,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:50,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:50,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:50,372 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:50,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:50,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:50,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-12 23:45:50,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539954859] [2021-11-12 23:45:50,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:50,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:45:50,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:50,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:45:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:45:50,963 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-12 23:45:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:50,999 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-12 23:45:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:45:51,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 9 [2021-11-12 23:45:51,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:51,003 INFO L225 Difference]: With dead ends: 29 [2021-11-12 23:45:51,004 INFO L226 Difference]: Without dead ends: 28 [2021-11-12 23:45:51,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:45:51,008 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:51,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 29.85ms Time] [2021-11-12 23:45:51,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-12 23:45:51,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2021-11-12 23:45:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 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) [2021-11-12 23:45:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-11-12 23:45:51,020 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2021-11-12 23:45:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:51,020 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-11-12 23:45:51,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-12 23:45:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-11-12 23:45:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:45:51,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:51,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-12 23:45:51,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:51,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:51,243 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1065881398, now seen corresponding path program 1 times [2021-11-12 23:45:51,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:51,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47032492] [2021-11-12 23:45:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:51,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:51,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 23:45:51,277 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:51,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47032492] [2021-11-12 23:45:51,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47032492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:45:51,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:45:51,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:45:51,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104893880] [2021-11-12 23:45:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:45:51,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:45:51,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:45:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:45:51,283 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-12 23:45:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:51,301 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-12 23:45:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:45:51,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-11-12 23:45:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:51,304 INFO L225 Difference]: With dead ends: 26 [2021-11-12 23:45:51,304 INFO L226 Difference]: Without dead ends: 25 [2021-11-12 23:45:51,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:45:51,307 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:51,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 8.79ms Time] [2021-11-12 23:45:51,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-12 23:45:51,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-12 23:45:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 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) [2021-11-12 23:45:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-11-12 23:45:51,320 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2021-11-12 23:45:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:51,321 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-11-12 23:45:51,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-12 23:45:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-11-12 23:45:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-12 23:45:51,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:51,324 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1] [2021-11-12 23:45:51,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-12 23:45:51,325 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:51,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 291495106, now seen corresponding path program 2 times [2021-11-12 23:45:51,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:51,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293542297] [2021-11-12 23:45:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:51,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:51,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:51,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293542297] [2021-11-12 23:45:51,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293542297] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:51,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107970261] [2021-11-12 23:45:51,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:51,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:51,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:51,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:51,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:45:51,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-12 23:45:51,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:51,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:45:51,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:51,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:51,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107970261] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:51,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1840759] [2021-11-12 23:45:51,680 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:45:51,680 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:51,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:51,680 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:51,681 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:51,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:51,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:51,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:51,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:45:51,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:45:51,722 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 10=[|v_#valid_10|]} [2021-11-12 23:45:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:51,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:45:51,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:51,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:51,731 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:51,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,741 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:51,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:45:51,764 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:51,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:51,768 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:51,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:45:51,799 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:51,799 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:45:51,806 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:45:51,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-12 23:45:51,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-12 23:45:51,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,899 INFO L180 QuantifierPusher]: treesize reduction 27, result has 88.5 percent of original size [2021-11-12 23:45:51,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:45:51,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:51,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:45:51,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:51,992 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:51,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:51,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:52,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:52,011 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:52,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:52,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:52,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:52,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:52,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:52,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:52,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:52,054 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:52,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:52,601 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:52,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-12 23:45:52,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494745604] [2021-11-12 23:45:52,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:52,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:45:52,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:52,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:45:52,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:45:52,603 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2021-11-12 23:45:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:52,654 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2021-11-12 23:45:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:45:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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 24 [2021-11-12 23:45:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:52,656 INFO L225 Difference]: With dead ends: 56 [2021-11-12 23:45:52,656 INFO L226 Difference]: Without dead ends: 55 [2021-11-12 23:45:52,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:45:52,657 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:52,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 35 Invalid, 36 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 40.84ms Time] [2021-11-12 23:45:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-12 23:45:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-12 23:45:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:45:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-11-12 23:45:52,664 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 24 [2021-11-12 23:45:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:52,664 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-11-12 23:45:52,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2021-11-12 23:45:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-11-12 23:45:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-12 23:45:52,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:52,666 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1] [2021-11-12 23:45:52,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:52,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-12 23:45:52,891 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1862645118, now seen corresponding path program 3 times [2021-11-12 23:45:52,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:52,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006662803] [2021-11-12 23:45:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:52,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:53,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:53,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006662803] [2021-11-12 23:45:53,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006662803] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:53,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169361007] [2021-11-12 23:45:53,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:45:53,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:53,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:53,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:53,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:45:53,133 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:45:53,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:53,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:45:53,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:53,330 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:53,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:53,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169361007] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:53,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [910670355] [2021-11-12 23:45:53,655 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:45:53,655 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:53,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:53,656 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:53,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:53,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,674 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:53,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:45:53,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:53,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:53,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:45:53,689 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 10=[|v_#valid_11|]} [2021-11-12 23:45:53,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:53,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:45:53,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:53,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:53,698 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:53,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,701 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:53,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:53,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:53,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:53,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:45:53,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:53,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:53,726 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:53,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:45:53,732 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:53,732 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:45:53,742 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:45:53,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-12 23:45:53,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-12 23:45:53,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,788 INFO L180 QuantifierPusher]: treesize reduction 29, result has 87.7 percent of original size [2021-11-12 23:45:53,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:45:53,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:45:53,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,853 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:53,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:53,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:53,865 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:53,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:53,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:53,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:53,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:53,905 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:54,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:54,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:54,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-11-12 23:45:54,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434124351] [2021-11-12 23:45:54,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:54,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-12 23:45:54,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-12 23:45:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=633, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:45:54,451 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2021-11-12 23:45:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:54,566 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2021-11-12 23:45:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-12 23:45:54,566 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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 54 [2021-11-12 23:45:54,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:54,572 INFO L225 Difference]: With dead ends: 116 [2021-11-12 23:45:54,572 INFO L226 Difference]: Without dead ends: 115 [2021-11-12 23:45:54,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=633, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:45:54,574 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 44 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.00ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:54,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 71 Invalid, 72 Unknown, 0 Unchecked, 4.00ms Time], IncrementalHoareTripleChecker [14 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 82.02ms Time] [2021-11-12 23:45:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-12 23:45:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-12 23:45:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.0087719298245614) internal successors, (115), 114 states have internal predecessors, (115), 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) [2021-11-12 23:45:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2021-11-12 23:45:54,602 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 54 [2021-11-12 23:45:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:54,602 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2021-11-12 23:45:54,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2021-11-12 23:45:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2021-11-12 23:45:54,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:45:54,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:54,610 INFO L514 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1] [2021-11-12 23:45:54,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:54,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-12 23:45:54,835 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:54,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:54,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1927842302, now seen corresponding path program 4 times [2021-11-12 23:45:54,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:54,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046394664] [2021-11-12 23:45:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:54,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:55,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:55,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046394664] [2021-11-12 23:45:55,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046394664] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:55,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418066974] [2021-11-12 23:45:55,263 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:45:55,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:55,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:55,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:55,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:45:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:55,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 23:45:55,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:55,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:55,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:45:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:56,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418066974] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:45:56,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2028241351] [2021-11-12 23:45:56,548 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:45:56,548 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:45:56,548 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:45:56,548 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:45:56,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:45:56,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,558 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:56,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:45:56,559 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:45:56,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:45:56,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:45:56,567 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_11|], 10=[|v_#valid_12|]} [2021-11-12 23:45:56,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:56,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:45:56,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:56,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:45:56,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:56,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,579 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:56,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:56,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:45:56,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:45:56,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:56,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:45:56,603 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:45:56,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:45:56,609 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:45:56,610 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:45:56,616 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:45:56,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-12 23:45:56,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-12 23:45:56,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,668 INFO L180 QuantifierPusher]: treesize reduction 27, result has 88.5 percent of original size [2021-11-12 23:45:56,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:45:56,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:45:56,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,722 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:56,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:56,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:56,730 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:45:56,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:56,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:45:56,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:45:56,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:45:56,763 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:45:57,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:45:57,361 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:45:57,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-11-12 23:45:57,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609160269] [2021-11-12 23:45:57,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:45:57,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-12 23:45:57,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:45:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-12 23:45:57,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1149, Invalid=1821, Unknown=0, NotChecked=0, Total=2970 [2021-11-12 23:45:57,366 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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) [2021-11-12 23:45:57,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:45:57,543 INFO L93 Difference]: Finished difference Result 236 states and 259 transitions. [2021-11-12 23:45:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-12 23:45:57,544 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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 114 [2021-11-12 23:45:57,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:45:57,547 INFO L225 Difference]: With dead ends: 236 [2021-11-12 23:45:57,547 INFO L226 Difference]: Without dead ends: 235 [2021-11-12 23:45:57,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1149, Invalid=1821, Unknown=0, NotChecked=0, Total=2970 [2021-11-12 23:45:57,549 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 115 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.79ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:45:57,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 143 Invalid, 128 Unknown, 0 Unchecked, 2.79ms Time], IncrementalHoareTripleChecker [28 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 118.12ms Time] [2021-11-12 23:45:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-12 23:45:57,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-11-12 23:45:57,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.0042735042735043) internal successors, (235), 234 states have internal predecessors, (235), 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) [2021-11-12 23:45:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2021-11-12 23:45:57,570 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 114 [2021-11-12 23:45:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:45:57,570 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 235 transitions. [2021-11-12 23:45:57,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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) [2021-11-12 23:45:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 235 transitions. [2021-11-12 23:45:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-12 23:45:57,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:45:57,574 INFO L514 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1] [2021-11-12 23:45:57,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:45:57,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-12 23:45:57,795 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:45:57,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:45:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash 33754370, now seen corresponding path program 5 times [2021-11-12 23:45:57,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:45:57,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920409768] [2021-11-12 23:45:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:45:57,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:45:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:45:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:59,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:45:59,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920409768] [2021-11-12 23:45:59,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920409768] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:45:59,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393345373] [2021-11-12 23:45:59,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:45:59,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:45:59,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:45:59,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:45:59,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:45:59,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2021-11-12 23:45:59,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:45:59,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-12 23:45:59,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:45:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:45:59,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:02,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393345373] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:02,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1768058678] [2021-11-12 23:46:02,855 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:46:02,855 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:02,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:02,856 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:02,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:02,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:02,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:02,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:46:02,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:46:02,869 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 10=[|v_#valid_13|]} [2021-11-12 23:46:02,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:46:02,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:46:02,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:46:02,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:02,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:46:02,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:02,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:02,894 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:46:02,899 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:02,899 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:46:02,905 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:46:02,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-12 23:46:02,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-12 23:46:02,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:02,944 INFO L180 QuantifierPusher]: treesize reduction 27, result has 88.5 percent of original size [2021-11-12 23:46:02,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:46:02,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:02,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:46:02,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,031 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:46:03,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:03,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:03,047 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:46:03,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:03,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:03,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:03,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:03,089 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:03,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:03,810 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:03,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-11-12 23:46:03,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781682922] [2021-11-12 23:46:03,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:03,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-11-12 23:46:03,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-11-12 23:46:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4581, Invalid=5925, Unknown=0, NotChecked=0, Total=10506 [2021-11-12 23:46:03,820 INFO L87 Difference]: Start difference. First operand 235 states and 235 transitions. Second operand has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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) [2021-11-12 23:46:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:04,288 INFO L93 Difference]: Finished difference Result 476 states and 523 transitions. [2021-11-12 23:46:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-12 23:46:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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 234 [2021-11-12 23:46:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:04,293 INFO L225 Difference]: With dead ends: 476 [2021-11-12 23:46:04,293 INFO L226 Difference]: Without dead ends: 475 [2021-11-12 23:46:04,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4581, Invalid=5925, Unknown=0, NotChecked=0, Total=10506 [2021-11-12 23:46:04,298 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 188 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 199.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:04,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 287 Invalid, 259 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [53 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 199.39ms Time] [2021-11-12 23:46:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-12 23:46:04,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2021-11-12 23:46:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.0021097046413503) internal successors, (475), 474 states have internal predecessors, (475), 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) [2021-11-12 23:46:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2021-11-12 23:46:04,337 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 234 [2021-11-12 23:46:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:04,338 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2021-11-12 23:46:04,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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) [2021-11-12 23:46:04,339 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2021-11-12 23:46:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-12 23:46:04,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:04,358 INFO L514 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1] [2021-11-12 23:46:04,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:04,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-11-12 23:46:04,583 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:46:04,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1625343230, now seen corresponding path program 6 times [2021-11-12 23:46:04,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:04,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644417943] [2021-11-12 23:46:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:04,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:08,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:08,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644417943] [2021-11-12 23:46:08,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644417943] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:08,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358892843] [2021-11-12 23:46:08,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:46:08,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:08,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:08,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:08,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:46:08,623 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:46:08,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:46:08,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-12 23:46:08,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:09,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:19,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358892843] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:46:19,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [510322318] [2021-11-12 23:46:19,691 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-12 23:46:19,691 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:46:19,692 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:46:19,692 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:46:19,692 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:46:19,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:46:19,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:46:19,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-12 23:46:19,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-12 23:46:19,702 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 10=[|v_#valid_14|]} [2021-11-12 23:46:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-12 23:46:19,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:46:19,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-12 23:46:19,711 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,714 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:46:19,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-12 23:46:19,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:19,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:46:19,726 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-12 23:46:19,732 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:46:19,732 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:87 [2021-11-12 23:46:19,737 INFO L180 QuantifierPusher]: treesize reduction 27, result has 76.1 percent of original size [2021-11-12 23:46:19,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-12 23:46:19,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-12 23:46:19,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,775 INFO L180 QuantifierPusher]: treesize reduction 27, result has 88.5 percent of original size [2021-11-12 23:46:19,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:46:19,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:46:19,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,820 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:46:19,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:19,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:19,828 INFO L180 QuantifierPusher]: treesize reduction 29, result has 58.0 percent of original size [2021-11-12 23:46:19,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:19,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:46:19,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-12 23:46:19,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:46:19,859 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:46:20,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 23:46:20,852 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:46:20,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-11-12 23:46:20,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871302121] [2021-11-12 23:46:20,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-12 23:46:20,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-11-12 23:46:20,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:46:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-11-12 23:46:20,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18357, Invalid=21045, Unknown=0, NotChecked=0, Total=39402 [2021-11-12 23:46:20,870 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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) [2021-11-12 23:46:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:22,188 INFO L93 Difference]: Finished difference Result 956 states and 1051 transitions. [2021-11-12 23:46:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-11-12 23:46:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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 474 [2021-11-12 23:46:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:22,193 INFO L225 Difference]: With dead ends: 956 [2021-11-12 23:46:22,193 INFO L226 Difference]: Without dead ends: 955 [2021-11-12 23:46:22,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1516 GetRequests, 1319 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1985 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=18357, Invalid=21045, Unknown=0, NotChecked=0, Total=39402 [2021-11-12 23:46:22,198 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 380 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.75ms SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 396.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:22,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 575 Invalid, 494 Unknown, 0 Unchecked, 7.75ms Time], IncrementalHoareTripleChecker [102 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 396.15ms Time] [2021-11-12 23:46:22,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-12 23:46:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2021-11-12 23:46:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 954 states have (on average 1.00104821802935) internal successors, (955), 954 states have internal predecessors, (955), 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) [2021-11-12 23:46:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 955 transitions. [2021-11-12 23:46:22,228 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 955 transitions. Word has length 474 [2021-11-12 23:46:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:22,229 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 955 transitions. [2021-11-12 23:46:22,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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) [2021-11-12 23:46:22,230 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 955 transitions. [2021-11-12 23:46:22,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2021-11-12 23:46:22,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:22,265 INFO L514 BasicCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1] [2021-11-12 23:46:22,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:22,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:22,484 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-12 23:46:22,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 711694082, now seen corresponding path program 7 times [2021-11-12 23:46:22,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:46:22,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338690362] [2021-11-12 23:46:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:22,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:46:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:46:35,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:46:35,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338690362] [2021-11-12 23:46:35,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338690362] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:35,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577742616] [2021-11-12 23:46:35,252 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-12 23:46:35,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:46:35,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:35,253 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:46:35,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:46:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:35,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 202 conjunts are in the unsatisfiable core [2021-11-12 23:46:35,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2021-11-12 23:46:59,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2021-11-12 23:47:01,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577742616] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:01,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:01,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203, 203] imperfect sequences [192] total 394 [2021-11-12 23:47:01,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857571053] [2021-11-12 23:47:01,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:01,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2021-11-12 23:47:01,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:47:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2021-11-12 23:47:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28930, Invalid=125912, Unknown=0, NotChecked=0, Total=154842 [2021-11-12 23:47:01,294 INFO L87 Difference]: Start difference. First operand 955 states and 955 transitions. Second operand has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2021-11-12 23:47:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:12,982 INFO L93 Difference]: Finished difference Result 955 states and 955 transitions. [2021-11-12 23:47:12,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-11-12 23:47:12,992 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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 954 [2021-11-12 23:47:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:12,993 INFO L225 Difference]: With dead ends: 955 [2021-11-12 23:47:12,993 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:47:13,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2198 GetRequests, 1706 SyntacticMatches, 0 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57891 ImplicationChecksByTransitivity, 42.1s TimeCoverageRelationStatistics Valid=44180, Invalid=199362, Unknown=0, NotChecked=0, Total=243542 [2021-11-12 23:47:13,055 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 200 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 4239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1269.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.40ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1591.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:13,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 1211 Invalid, 4240 Unknown, 0 Unchecked, 18.40ms Time], IncrementalHoareTripleChecker [1 Valid, 4239 Invalid, 0 Unknown, 0 Unchecked, 1591.39ms Time] [2021-11-12 23:47:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:47:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:47:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-12 23:47:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:47:13,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 954 [2021-11-12 23:47:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:13,056 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:47:13,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2021-11-12 23:47:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:47:13,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:47:13,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-12 23:47:13,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-12 23:47:13,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-12 23:47:13,060 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-12 23:47:13,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:13,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:47:13,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:47:15,764 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-12 23:47:15,765 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:47:15,765 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-12 23:47:15,765 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-12 23:47:15,765 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-12 23:47:15,766 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)))) (or (and (<= |ULTIMATE.start_main_~j~0#1| 118) .cse0 (<= 59 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483459) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 138) .cse0 (<= 69 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 70)) (and .cse0 (<= 65 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 130)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 146) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 66 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 132)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 182) (<= 91 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 6)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 8) (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 164) (<= 82 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 89 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 178)) (and .cse0 (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 68)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 88)) (and .cse0 (<= 93 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 186)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483457) (<= 95 |ULTIMATE.start_main_~i~0#1|)) (and (<= 21 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 42)) (and .cse0 (<= 23 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 46)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483465) (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 66) (<= 33 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 56)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 18) (<= 9 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 39 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 78)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483463) (<= 98 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 48 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 96)) (and .cse0 (<= 53 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 106)) (and .cse0 (<= 20 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 40)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 44) (<= 22 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 112) (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 45 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 90)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 158)) (and .cse0 (<= 58 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 116)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 64) (<= 32 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 148)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 62) (<= 31 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 50) (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 82) (<= 41 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 57 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 114)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 140) (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 54) .cse0 (<= 27 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 43 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 86)) (and .cse0 (<= 63 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 126)) (and .cse0 (<= 13 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 26)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 160) (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 49 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 98)) (and .cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 51 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 102)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 142) (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 172)) (and (<= |ULTIMATE.start_main_~j~0#1| 10) .cse0 (<= 5 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 10 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 20)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 32) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 150) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 88 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 176)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 92) (<= 46 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 170) .cse0 (<= 85 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 154) (<= 77 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 74)) (and .cse0 (<= 97 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483461)) (and .cse0 (<= 84 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 168)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 48) (<= 24 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 16) (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 38) (<= 19 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 100 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483467)) (and .cse0 (<= 61 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 122)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 188) (<= 94 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 30) (<= 15 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 12 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 24)) (and .cse0 (<= 30 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 60)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 108) (<= 54 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 6 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 12)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 136) (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 87 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 174)) (and .cse0 (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 52)) (and .cse0 (<= 42 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 84)) (and .cse0 (<= 50 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 100)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2)) (and (<= |ULTIMATE.start_main_~j~0#1| 104) .cse0 (<= 52 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 40 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 80)) (and .cse0 (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 144)) (and .cse0 (<= 17 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 34)) (and .cse0 (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 128)) (and .cse0 (<= 7 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 14)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 124) (<= 62 |ULTIMATE.start_main_~i~0#1|)) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 110)) (and .cse0 (<= 47 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 94)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 4) (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 38 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 76)) (and .cse0 (<= 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 28)) (and (<= |ULTIMATE.start_main_~j~0#1| 120) .cse0 (<= 60 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 18 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 36)) (and .cse0 (<= 76 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 152)) (and (<= |ULTIMATE.start_main_~j~0#1| 72) .cse0 (<= 36 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 92 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 184)) (and (<= |ULTIMATE.start_main_~j~0#1| 58) .cse0 (<= 29 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 134) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 166) (<= 83 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 162) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 156) (<= 78 |ULTIMATE.start_main_~i~0#1|)) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 180)))) [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:47:15,767 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-12 23:47:15,767 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-12 23:47:15,770 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1] [2021-11-12 23:47:15,771 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:47:15,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:47:15 BoogieIcfgContainer [2021-11-12 23:47:15,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:47:15,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:47:15,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:47:15,820 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:47:15,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:45:48" (3/4) ... [2021-11-12 23:47:15,823 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:47:15,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-12 23:47:15,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-12 23:47:15,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 23:47:15,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:47:15,878 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:47:15,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:47:15,879 INFO L158 Benchmark]: Toolchain (without parser) took 87761.19ms. Allocated memory was 119.5MB in the beginning and 553.6MB in the end (delta: 434.1MB). Free memory was 81.6MB in the beginning and 406.7MB in the end (delta: -325.2MB). Peak memory consumption was 108.8MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,879 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:15,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.03ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 94.4MB in the end (delta: -13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.81ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,880 INFO L158 Benchmark]: Boogie Preprocessor took 38.60ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 91.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:47:15,884 INFO L158 Benchmark]: RCFGBuilder took 274.67ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 81.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,884 INFO L158 Benchmark]: TraceAbstraction took 87106.67ms. Allocated memory was 119.5MB in the beginning and 553.6MB in the end (delta: 434.1MB). Free memory was 81.5MB in the beginning and 409.9MB in the end (delta: -328.4MB). Peak memory consumption was 302.6MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,885 INFO L158 Benchmark]: Witness Printer took 59.50ms. Allocated memory is still 553.6MB. Free memory was 409.9MB in the beginning and 406.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:47:15,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.03ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 94.4MB in the end (delta: -13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.81ms. Allocated memory is still 119.5MB. Free memory was 94.4MB in the beginning and 93.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.60ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 91.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.67ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 81.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 87106.67ms. Allocated memory was 119.5MB in the beginning and 553.6MB in the end (delta: 434.1MB). Free memory was 81.5MB in the beginning and 409.9MB in the end (delta: -328.4MB). Peak memory consumption was 302.6MB. Max. memory is 16.1GB. * Witness Printer took 59.50ms. Allocated memory is still 553.6MB. Free memory was 409.9MB in the beginning and 406.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 87.0s, OverallIterations: 12, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 978 SdHoareTripleChecker+Valid, 2541.98ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 978 mSDsluCounter, 2385 SdHoareTripleChecker+Invalid, 1997.22ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2231 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5091 IncrementalHoareTripleChecker+Invalid, 5307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 155 mSDtfsCounter, 5091 mSolverCounterSat, 41.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5117 GetRequests, 4206 SyntacticMatches, 0 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61674 ImplicationChecksByTransitivity, 62.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=11, InterpolantAutomatonStates: 600, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1214 HoareAnnotationTreeSize, 2 FomulaSimplifications, 567 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 60.1s InterpolantComputationTime, 3759 NumberOfCodeBlocks, 3759 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 5596 ConstructedInterpolants, 0 QuantifiedInterpolants, 14930 SizeOfPredicates, 100 NumberOfNonLiveVariables, 4282 ConjunctsInSsa, 391 ConjunctsInUnsatCore, 26 InterpolantComputations, 7 PerfectInterpolantSequences, 180314/356851 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j <= 118 && 0 <= j + 2147483648) && 59 <= i) || ((0 <= j + 2147483648 && j <= 2147483459) && 96 <= i)) || ((j <= 138 && 0 <= j + 2147483648) && 69 <= i)) || ((0 <= j + 2147483648 && 35 <= i) && j <= 70)) || ((0 <= j + 2147483648 && 65 <= i) && j <= 130)) || ((0 <= j + 2147483648 && j <= 146) && 73 <= i)) || ((0 <= j + 2147483648 && 66 <= i) && j <= 132)) || ((0 <= j + 2147483648 && j <= 182) && 91 <= i)) || ((0 <= j + 2147483648 && 3 <= i) && j <= 6)) || ((0 <= j + 2147483648 && j <= 8) && 4 <= i)) || ((j <= 164 && 82 <= i) && 0 <= j + 2147483648)) || ((0 <= j + 2147483648 && 89 <= i) && j <= 178)) || ((0 <= j + 2147483648 && 34 <= i) && j <= 68)) || ((44 <= i && 0 <= j + 2147483648) && j <= 88)) || ((0 <= j + 2147483648 && 93 <= i) && j <= 186)) || ((0 <= j + 2147483648 && j <= 2147483457) && 95 <= i)) || ((21 <= i && 0 <= j + 2147483648) && j <= 42)) || ((0 <= j + 2147483648 && 23 <= i) && j <= 46)) || ((0 <= j + 2147483648 && j <= 2147483465) && 99 <= i)) || ((0 <= j + 2147483648 && j <= 66) && 33 <= i)) || ((0 <= j + 2147483648 && 28 <= i) && j <= 56)) || ((0 <= j + 2147483648 && j <= 18) && 9 <= i)) || ((0 <= j + 2147483648 && 39 <= i) && j <= 78)) || ((0 <= j + 2147483648 && j <= 2147483463) && 98 <= i)) || ((0 <= j + 2147483648 && 48 <= i) && j <= 96)) || ((0 <= j + 2147483648 && 53 <= i) && j <= 106)) || ((0 <= j + 2147483648 && 20 <= i) && j <= 40)) || ((0 <= j + 2147483648 && j <= 44) && 22 <= i)) || ((0 <= j + 2147483648 && j <= 112) && 56 <= i)) || ((0 <= j + 2147483648 && 45 <= i) && j <= 90)) || ((79 <= i && 0 <= j + 2147483648) && j <= 158)) || ((0 <= j + 2147483648 && 58 <= i) && j <= 116)) || ((0 <= j + 2147483648 && j <= 64) && 32 <= i)) || ((0 <= j + 2147483648 && 74 <= i) && j <= 148)) || ((0 <= j + 2147483648 && j <= 62) && 31 <= i)) || ((0 <= j + 2147483648 && j <= 50) && 25 <= i)) || ((0 <= j + 2147483648 && j <= 82) && 41 <= i)) || ((0 <= j + 2147483648 && 57 <= i) && j <= 114)) || ((0 <= j + 2147483648 && j <= 140) && 70 <= i)) || ((j <= 54 && 0 <= j + 2147483648) && 27 <= i)) || ((0 <= j + 2147483648 && 43 <= i) && j <= 86)) || ((0 <= j + 2147483648 && 63 <= i) && j <= 126)) || ((0 <= j + 2147483648 && 13 <= i) && j <= 26)) || ((0 <= j + 2147483648 && j <= 160) && 80 <= i)) || ((0 <= j + 2147483648 && 49 <= i) && j <= 98)) || ((0 <= j + 2147483648 && 0 <= i) && j <= 0)) || ((0 <= j + 2147483648 && 51 <= i) && j <= 102)) || ((0 <= j + 2147483648 && j <= 142) && 71 <= i)) || ((86 <= i && 0 <= j + 2147483648) && j <= 172)) || ((j <= 10 && 0 <= j + 2147483648) && 5 <= i)) || ((0 <= j + 2147483648 && 10 <= i) && j <= 20)) || ((0 <= j + 2147483648 && j <= 32) && 16 <= i)) || ((0 <= j + 2147483648 && j <= 150) && 75 <= i)) || ((0 <= j + 2147483648 && 88 <= i) && j <= 176)) || ((0 <= j + 2147483648 && j <= 92) && 46 <= i)) || ((0 <= j + 2147483648 && j <= 22) && 11 <= i)) || ((j <= 170 && 0 <= j + 2147483648) && 85 <= i)) || ((0 <= j + 2147483648 && j <= 154) && 77 <= i)) || ((0 <= j + 2147483648 && 37 <= i) && j <= 74)) || ((0 <= j + 2147483648 && 97 <= i) && j <= 2147483461)) || ((0 <= j + 2147483648 && 84 <= i) && j <= 168)) || ((0 <= j + 2147483648 && j <= 48) && 24 <= i)) || ((0 <= j + 2147483648 && j <= 16) && 8 <= i)) || ((0 <= j + 2147483648 && j <= 38) && 19 <= i)) || ((0 <= j + 2147483648 && 100 <= i) && j <= 2147483467)) || ((0 <= j + 2147483648 && 61 <= i) && j <= 122)) || ((0 <= j + 2147483648 && j <= 188) && 94 <= i)) || ((0 <= j + 2147483648 && j <= 30) && 15 <= i)) || ((0 <= j + 2147483648 && 12 <= i) && j <= 24)) || ((0 <= j + 2147483648 && 30 <= i) && j <= 60)) || ((0 <= j + 2147483648 && j <= 108) && 54 <= i)) || ((0 <= j + 2147483648 && 6 <= i) && j <= 12)) || ((0 <= j + 2147483648 && j <= 136) && 68 <= i)) || ((0 <= j + 2147483648 && 87 <= i) && j <= 174)) || ((0 <= j + 2147483648 && 26 <= i) && j <= 52)) || ((0 <= j + 2147483648 && 42 <= i) && j <= 84)) || ((0 <= j + 2147483648 && 50 <= i) && j <= 100)) || ((0 <= j + 2147483648 && 1 <= i) && j <= 2)) || ((j <= 104 && 0 <= j + 2147483648) && 52 <= i)) || ((0 <= j + 2147483648 && 40 <= i) && j <= 80)) || ((0 <= j + 2147483648 && 72 <= i) && j <= 144)) || ((0 <= j + 2147483648 && 17 <= i) && j <= 34)) || ((0 <= j + 2147483648 && 64 <= i) && j <= 128)) || ((0 <= j + 2147483648 && 7 <= i) && j <= 14)) || ((0 <= j + 2147483648 && j <= 124) && 62 <= i)) || ((55 <= i && 0 <= j + 2147483648) && j <= 110)) || ((0 <= j + 2147483648 && 47 <= i) && j <= 94)) || ((0 <= j + 2147483648 && j <= 4) && 2 <= i)) || ((0 <= j + 2147483648 && 38 <= i) && j <= 76)) || ((0 <= j + 2147483648 && 14 <= i) && j <= 28)) || ((j <= 120 && 0 <= j + 2147483648) && 60 <= i)) || ((0 <= j + 2147483648 && 18 <= i) && j <= 36)) || ((0 <= j + 2147483648 && 76 <= i) && j <= 152)) || ((j <= 72 && 0 <= j + 2147483648) && 36 <= i)) || ((0 <= j + 2147483648 && 92 <= i) && j <= 184)) || ((j <= 58 && 0 <= j + 2147483648) && 29 <= i)) || ((0 <= j + 2147483648 && j <= 134) && 67 <= i)) || ((0 <= j + 2147483648 && j <= 166) && 83 <= i)) || ((0 <= j + 2147483648 && j <= 162) && 81 <= i)) || ((0 <= j + 2147483648 && j <= 156) && 78 <= i)) || ((90 <= i && 0 <= j + 2147483648) && j <= 180) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-12 23:47:15,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08a244e8-811e-4044-8cf4-7bfc92c03beb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE