./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0 --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 caaec4b6d97bde36a1fbc7dfb6c9c9f88e0ac7fb0d2e87f4054fca32d8e102e9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 16:14:19,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:14:19,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:14:19,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:14:19,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:14:19,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:14:19,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:14:19,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:14:19,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:14:19,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:14:19,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:14:19,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:14:19,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:14:19,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:14:19,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:14:19,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:14:19,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:14:19,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:14:19,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:14:19,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:14:19,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:14:19,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:14:19,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:14:19,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:14:19,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:14:19,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:14:19,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:14:19,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:14:19,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:14:19,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:14:19,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:14:19,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:14:19,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:14:19,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:14:19,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:14:19,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:14:19,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:14:19,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:14:19,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:14:19,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:14:19,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:14:19,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:14:19,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:14:19,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:14:19,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:14:19,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:14:19,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:14:19,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:14:19,603 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:14:19,603 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:14:19,603 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:14:19,603 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:14:19,604 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:14:19,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:14:19,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:14:19,604 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:14:19,605 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:14:19,605 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:14:19,605 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:14:19,605 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:14:19,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:14:19,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:14:19,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:14:19,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:14:19,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:14:19,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:14:19,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:14:19,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:14:19,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:14:19,609 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:14:19,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:14:19,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:14:19,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:14:19,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:14:19,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:14:19,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:14:19,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:14:19,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:14:19,611 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:14:19,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:14:19,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:14:19,612 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:14:19,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:14:19,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:14:19,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:14:19,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> caaec4b6d97bde36a1fbc7dfb6c9c9f88e0ac7fb0d2e87f4054fca32d8e102e9 [2022-11-16 16:14:19,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:14:19,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:14:19,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:14:19,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:14:19,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:14:19,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-multidimensional/copy-3-n-u.c [2022-11-16 16:14:19,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/data/4a2d9b87a/1c7d94f6b2cf41ee85b2b92420c55c82/FLAG6c7fd8687 [2022-11-16 16:14:20,408 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:14:20,409 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/sv-benchmarks/c/array-multidimensional/copy-3-n-u.c [2022-11-16 16:14:20,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/data/4a2d9b87a/1c7d94f6b2cf41ee85b2b92420c55c82/FLAG6c7fd8687 [2022-11-16 16:14:20,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/data/4a2d9b87a/1c7d94f6b2cf41ee85b2b92420c55c82 [2022-11-16 16:14:20,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:14:20,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:14:20,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:14:20,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:14:20,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:14:20,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:14:20" (1/1) ... [2022-11-16 16:14:20,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce56974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:20, skipping insertion in model container [2022-11-16 16:14:20,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:14:20" (1/1) ... [2022-11-16 16:14:20,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:14:20,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:14:21,036 WARN L229 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_7da52faa-ff7f-4471-8151-2cee19646694/sv-benchmarks/c/array-multidimensional/copy-3-n-u.c[322,335] [2022-11-16 16:14:21,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:14:21,088 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:14:21,100 WARN L229 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_7da52faa-ff7f-4471-8151-2cee19646694/sv-benchmarks/c/array-multidimensional/copy-3-n-u.c[322,335] [2022-11-16 16:14:21,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:14:21,125 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:14:21,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21 WrapperNode [2022-11-16 16:14:21,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:14:21,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:14:21,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:14:21,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:14:21,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,171 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2022-11-16 16:14:21,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:14:21,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:14:21,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:14:21,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:14:21,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:14:21,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:14:21,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:14:21,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:14:21,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (1/1) ... [2022-11-16 16:14:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:14:21,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:21,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:14:21,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:14:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:14:21,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:14:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:14:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:14:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:14:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:14:21,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:14:21,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:14:21,397 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:14:21,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:14:21,634 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:14:21,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:14:21,728 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 16:14:21,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:21 BoogieIcfgContainer [2022-11-16 16:14:21,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:14:21,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:14:21,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:14:21,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:14:21,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:14:20" (1/3) ... [2022-11-16 16:14:21,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61391c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:14:21, skipping insertion in model container [2022-11-16 16:14:21,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:21" (2/3) ... [2022-11-16 16:14:21,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61391c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:14:21, skipping insertion in model container [2022-11-16 16:14:21,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:21" (3/3) ... [2022-11-16 16:14:21,752 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-3-n-u.c [2022-11-16 16:14:21,772 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:14:21,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 16:14:21,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:14:21,859 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@768dad78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:14:21,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-16 16:14:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 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) [2022-11-16 16:14:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 16:14:21,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:21,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 16:14:21,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:21,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash 5825440, now seen corresponding path program 1 times [2022-11-16 16:14:21,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:21,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072754026] [2022-11-16 16:14:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:21,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:22,027 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:22,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213425626] [2022-11-16 16:14:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:22,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:22,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:22,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:22,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:14:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:22,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:22,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:22,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:22,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:22,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072754026] [2022-11-16 16:14:22,232 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213425626] [2022-11-16 16:14:22,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213425626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:22,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:22,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 16:14:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751796449] [2022-11-16 16:14:22,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:22,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:22,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:22,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:22,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:22,292 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-16 16:14:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:22,436 INFO L93 Difference]: Finished difference Result 90 states and 109 transitions. [2022-11-16 16:14:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:22,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-16 16:14:22,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:22,449 INFO L225 Difference]: With dead ends: 90 [2022-11-16 16:14:22,450 INFO L226 Difference]: Without dead ends: 85 [2022-11-16 16:14:22,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:22,460 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 44 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:22,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 57 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-16 16:14:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2022-11-16 16:14:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 69 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2022-11-16 16:14:22,503 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 4 [2022-11-16 16:14:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:22,503 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2022-11-16 16:14:22,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-16 16:14:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2022-11-16 16:14:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:14:22,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:22,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:14:22,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:22,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 16:14:22,713 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:22,714 INFO L85 PathProgramCache]: Analyzing trace with hash 180438730, now seen corresponding path program 1 times [2022-11-16 16:14:22,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:22,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487711100] [2022-11-16 16:14:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:22,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:22,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:22,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644082405] [2022-11-16 16:14:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:22,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:22,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:22,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:22,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:14:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:22,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:22,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:22,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:22,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:22,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:22,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487711100] [2022-11-16 16:14:22,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:22,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644082405] [2022-11-16 16:14:22,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644082405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:22,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:22,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:22,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226758864] [2022-11-16 16:14:22,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:22,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:22,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:22,865 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-16 16:14:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:23,010 INFO L93 Difference]: Finished difference Result 133 states and 190 transitions. [2022-11-16 16:14:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:23,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-16 16:14:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:23,014 INFO L225 Difference]: With dead ends: 133 [2022-11-16 16:14:23,014 INFO L226 Difference]: Without dead ends: 130 [2022-11-16 16:14:23,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:23,016 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:23,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 54 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:23,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-16 16:14:23,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 100. [2022-11-16 16:14:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 82 states have (on average 1.853658536585366) internal successors, (152), 99 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:23,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 152 transitions. [2022-11-16 16:14:23,031 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 152 transitions. Word has length 5 [2022-11-16 16:14:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:23,031 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 152 transitions. [2022-11-16 16:14:23,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-16 16:14:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 152 transitions. [2022-11-16 16:14:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:14:23,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:23,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:14:23,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:23,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:23,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash 180434445, now seen corresponding path program 1 times [2022-11-16 16:14:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:23,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205082814] [2022-11-16 16:14:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:23,247 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:23,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232978146] [2022-11-16 16:14:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:23,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:23,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:23,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:23,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:14:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:23,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:23,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:23,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:23,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:23,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205082814] [2022-11-16 16:14:23,321 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:23,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232978146] [2022-11-16 16:14:23,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232978146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:23,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:23,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:23,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094962272] [2022-11-16 16:14:23,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:23,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:23,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:23,324 INFO L87 Difference]: Start difference. First operand 100 states and 152 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-16 16:14:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:23,412 INFO L93 Difference]: Finished difference Result 187 states and 286 transitions. [2022-11-16 16:14:23,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-16 16:14:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:23,415 INFO L225 Difference]: With dead ends: 187 [2022-11-16 16:14:23,415 INFO L226 Difference]: Without dead ends: 184 [2022-11-16 16:14:23,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:23,417 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:23,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 57 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:23,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-16 16:14:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 124. [2022-11-16 16:14:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.7735849056603774) internal successors, (188), 123 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 188 transitions. [2022-11-16 16:14:23,435 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 188 transitions. Word has length 5 [2022-11-16 16:14:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:23,436 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 188 transitions. [2022-11-16 16:14:23,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-16 16:14:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 188 transitions. [2022-11-16 16:14:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:14:23,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:23,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:14:23,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:23,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:23,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 180588717, now seen corresponding path program 1 times [2022-11-16 16:14:23,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:23,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260740748] [2022-11-16 16:14:23,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:23,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:23,657 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:23,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753399142] [2022-11-16 16:14:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:23,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:23,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:23,660 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:23,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:14:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:23,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:23,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:23,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:23,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260740748] [2022-11-16 16:14:23,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753399142] [2022-11-16 16:14:23,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753399142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:23,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:23,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 16:14:23,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325943473] [2022-11-16 16:14:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:23,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:23,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:23,732 INFO L87 Difference]: Start difference. First operand 124 states and 188 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) [2022-11-16 16:14:23,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:23,794 INFO L93 Difference]: Finished difference Result 124 states and 188 transitions. [2022-11-16 16:14:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:23,795 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 [2022-11-16 16:14:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:23,796 INFO L225 Difference]: With dead ends: 124 [2022-11-16 16:14:23,796 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 16:14:23,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:23,797 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:23,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:23,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 16:14:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-16 16:14:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 106 states have (on average 1.7452830188679245) internal successors, (185), 120 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 185 transitions. [2022-11-16 16:14:23,815 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 185 transitions. Word has length 5 [2022-11-16 16:14:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:23,815 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 185 transitions. [2022-11-16 16:14:23,815 INFO L496 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) [2022-11-16 16:14:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 185 transitions. [2022-11-16 16:14:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 16:14:23,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:23,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 16:14:23,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:24,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1298633404, now seen corresponding path program 1 times [2022-11-16 16:14:24,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:24,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951609159] [2022-11-16 16:14:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:24,029 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:24,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090175210] [2022-11-16 16:14:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:24,031 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:24,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:14:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:24,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:24,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:24,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:24,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:24,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951609159] [2022-11-16 16:14:24,098 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:24,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090175210] [2022-11-16 16:14:24,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090175210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:24,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:24,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:24,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190607878] [2022-11-16 16:14:24,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:24,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:24,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:24,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:24,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,101 INFO L87 Difference]: Start difference. First operand 121 states and 185 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-16 16:14:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:24,176 INFO L93 Difference]: Finished difference Result 121 states and 185 transitions. [2022-11-16 16:14:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:24,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2022-11-16 16:14:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:24,178 INFO L225 Difference]: With dead ends: 121 [2022-11-16 16:14:24,178 INFO L226 Difference]: Without dead ends: 118 [2022-11-16 16:14:24,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,179 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:24,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-16 16:14:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-16 16:14:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 106 states have (on average 1.6886792452830188) internal successors, (179), 117 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 179 transitions. [2022-11-16 16:14:24,195 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 179 transitions. Word has length 6 [2022-11-16 16:14:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:24,196 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 179 transitions. [2022-11-16 16:14:24,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-16 16:14:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 179 transitions. [2022-11-16 16:14:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 16:14:24,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:24,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 16:14:24,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:24,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:24,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:24,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1298500562, now seen corresponding path program 1 times [2022-11-16 16:14:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:24,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797748303] [2022-11-16 16:14:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:24,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:24,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [678049834] [2022-11-16 16:14:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:24,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:24,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:14:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:24,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 16:14:24,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:24,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:24,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:24,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797748303] [2022-11-16 16:14:24,482 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:24,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678049834] [2022-11-16 16:14:24,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678049834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:24,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:24,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949139568] [2022-11-16 16:14:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:24,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:24,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,485 INFO L87 Difference]: Start difference. First operand 118 states and 179 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-16 16:14:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:24,553 INFO L93 Difference]: Finished difference Result 118 states and 179 transitions. [2022-11-16 16:14:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:24,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2022-11-16 16:14:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:24,555 INFO L225 Difference]: With dead ends: 118 [2022-11-16 16:14:24,555 INFO L226 Difference]: Without dead ends: 115 [2022-11-16 16:14:24,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,559 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:24,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:14:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-16 16:14:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-16 16:14:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 106 states have (on average 1.5754716981132075) internal successors, (167), 114 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 167 transitions. [2022-11-16 16:14:24,606 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 167 transitions. Word has length 6 [2022-11-16 16:14:24,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:24,607 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 167 transitions. [2022-11-16 16:14:24,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-16 16:14:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 167 transitions. [2022-11-16 16:14:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:14:24,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:24,608 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:24,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:24,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:24,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1976441164, now seen corresponding path program 1 times [2022-11-16 16:14:24,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:24,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325456036] [2022-11-16 16:14:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:24,817 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:24,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053287677] [2022-11-16 16:14:24,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:24,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:24,819 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:24,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 16:14:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:24,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:24,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:24,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:24,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:24,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325456036] [2022-11-16 16:14:24,979 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:24,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053287677] [2022-11-16 16:14:24,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053287677] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:24,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [821608443] [2022-11-16 16:14:25,000 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-16 16:14:25,001 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:25,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:25,011 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:25,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:25,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,196 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:25,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2022-11-16 16:14:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:25,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-16 16:14:25,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:14:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:25,912 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-16 16:14:25,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 477 treesize of output 397 [2022-11-16 16:14:26,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:26,131 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:27,052 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2056#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:27,052 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:27,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:27,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-16 16:14:27,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916159069] [2022-11-16 16:14:27,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:27,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:14:27,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:27,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:14:27,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:14:27,054 INFO L87 Difference]: Start difference. First operand 115 states and 167 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2022-11-16 16:14:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:27,268 INFO L93 Difference]: Finished difference Result 394 states and 559 transitions. [2022-11-16 16:14:27,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:14:27,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) Word has length 8 [2022-11-16 16:14:27,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:27,270 INFO L225 Difference]: With dead ends: 394 [2022-11-16 16:14:27,271 INFO L226 Difference]: Without dead ends: 391 [2022-11-16 16:14:27,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:14:27,272 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 202 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:27,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 99 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:14:27,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-11-16 16:14:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 223. [2022-11-16 16:14:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.4532710280373833) internal successors, (311), 222 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 311 transitions. [2022-11-16 16:14:27,295 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 311 transitions. Word has length 8 [2022-11-16 16:14:27,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:27,295 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 311 transitions. [2022-11-16 16:14:27,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2022-11-16 16:14:27,295 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 311 transitions. [2022-11-16 16:14:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:14:27,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:27,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-16 16:14:27,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:27,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:27,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1675507755, now seen corresponding path program 1 times [2022-11-16 16:14:27,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:27,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096745613] [2022-11-16 16:14:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:27,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:27,514 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:27,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439682741] [2022-11-16 16:14:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:27,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:27,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:27,517 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:27,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 16:14:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:27,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:27,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:14:27,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:27,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:27,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096745613] [2022-11-16 16:14:27,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:27,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439682741] [2022-11-16 16:14:27,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439682741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:27,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:27,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:14:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636803225] [2022-11-16 16:14:27,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:27,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:14:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:27,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:14:27,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:14:27,594 INFO L87 Difference]: Start difference. First operand 223 states and 311 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:27,673 INFO L93 Difference]: Finished difference Result 420 states and 577 transitions. [2022-11-16 16:14:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:14:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 16:14:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:27,675 INFO L225 Difference]: With dead ends: 420 [2022-11-16 16:14:27,675 INFO L226 Difference]: Without dead ends: 232 [2022-11-16 16:14:27,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:14:27,677 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 94 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:27,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-16 16:14:27,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 223. [2022-11-16 16:14:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.425233644859813) internal successors, (305), 222 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 305 transitions. [2022-11-16 16:14:27,695 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 305 transitions. Word has length 8 [2022-11-16 16:14:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:27,696 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 305 transitions. [2022-11-16 16:14:27,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 305 transitions. [2022-11-16 16:14:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 16:14:27,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:27,697 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-16 16:14:27,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-16 16:14:27,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:27,902 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:27,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1477609579, now seen corresponding path program 1 times [2022-11-16 16:14:27,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:27,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568421899] [2022-11-16 16:14:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:27,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:27,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868343032] [2022-11-16 16:14:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:27,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:27,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:27,920 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:27,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 16:14:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:27,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:27,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:14:28,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:14:28,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568421899] [2022-11-16 16:14:28,002 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868343032] [2022-11-16 16:14:28,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868343032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:28,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:28,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:14:28,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594157968] [2022-11-16 16:14:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:28,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:14:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:14:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:14:28,007 INFO L87 Difference]: Start difference. First operand 223 states and 305 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:28,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:28,084 INFO L93 Difference]: Finished difference Result 429 states and 586 transitions. [2022-11-16 16:14:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:14:28,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 [2022-11-16 16:14:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:28,086 INFO L225 Difference]: With dead ends: 429 [2022-11-16 16:14:28,086 INFO L226 Difference]: Without dead ends: 223 [2022-11-16 16:14:28,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:14:28,093 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 65 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:28,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-16 16:14:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-11-16 16:14:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.3691588785046729) internal successors, (293), 222 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 293 transitions. [2022-11-16 16:14:28,113 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 293 transitions. Word has length 9 [2022-11-16 16:14:28,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:28,113 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 293 transitions. [2022-11-16 16:14:28,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 293 transitions. [2022-11-16 16:14:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 16:14:28,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:28,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-16 16:14:28,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-16 16:14:28,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 16:14:28,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1191074753, now seen corresponding path program 1 times [2022-11-16 16:14:28,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:28,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055542385] [2022-11-16 16:14:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:28,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:28,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537326299] [2022-11-16 16:14:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:28,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:28,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:28,349 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:28,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 16:14:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:28,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:14:28,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:28,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:14:28,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:14:28,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:28,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055542385] [2022-11-16 16:14:28,498 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:28,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537326299] [2022-11-16 16:14:28,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537326299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:28,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1081274253] [2022-11-16 16:14:28,501 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 16:14:28,501 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:28,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:28,502 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:28,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:28,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,609 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:28,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:28,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2022-11-16 16:14:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:28,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-16 16:14:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:14:29,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,049 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-16 16:14:29,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 477 treesize of output 397 [2022-11-16 16:14:29,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:29,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:29,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:29,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:29,658 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 16:14:29,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 239 treesize of output 161 [2022-11-16 16:14:29,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:29,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:29,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-16 16:14:30,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 159 [2022-11-16 16:14:30,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:30,318 INFO L321 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2022-11-16 16:14:30,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 224 [2022-11-16 16:14:30,450 INFO L321 Elim1Store]: treesize reduction 162, result has 8.5 percent of original size [2022-11-16 16:14:30,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 272 treesize of output 256 [2022-11-16 16:14:30,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:30,600 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:31,777 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4758#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:31,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:31,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:31,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 16:14:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860216904] [2022-11-16 16:14:31,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:31,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:14:31,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:14:31,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:14:31,779 INFO L87 Difference]: Start difference. First operand 223 states and 293 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:31,948 INFO L93 Difference]: Finished difference Result 429 states and 563 transitions. [2022-11-16 16:14:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:14:31,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 15 [2022-11-16 16:14:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:31,950 INFO L225 Difference]: With dead ends: 429 [2022-11-16 16:14:31,950 INFO L226 Difference]: Without dead ends: 223 [2022-11-16 16:14:31,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-11-16 16:14:31,952 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 163 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:31,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 78 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-16 16:14:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-11-16 16:14:31,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 214 states have (on average 1.2009345794392523) internal successors, (257), 222 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 257 transitions. [2022-11-16 16:14:31,969 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 257 transitions. Word has length 15 [2022-11-16 16:14:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:31,970 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 257 transitions. [2022-11-16 16:14:31,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 257 transitions. [2022-11-16 16:14:31,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 16:14:31,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:31,976 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 16:14:31,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:32,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:32,181 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:32,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:32,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1817537715, now seen corresponding path program 2 times [2022-11-16 16:14:32,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:32,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099737488] [2022-11-16 16:14:32,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:32,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:32,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:32,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873739149] [2022-11-16 16:14:32,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:14:32,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:32,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:32,196 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:32,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 16:14:32,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 16:14:32,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:14:32,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:32,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 16:14:32,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 16:14:32,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:32,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099737488] [2022-11-16 16:14:32,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:32,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873739149] [2022-11-16 16:14:32,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873739149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:32,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2057320143] [2022-11-16 16:14:32,336 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-16 16:14:32,336 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:32,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:32,337 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:32,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:32,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,428 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:32,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2022-11-16 16:14:32,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:32,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-16 16:14:32,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:32,781 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-16 16:14:32,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 485 treesize of output 401 [2022-11-16 16:14:32,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:32,921 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:33,703 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5751#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:33,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:33,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:33,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-16 16:14:33,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877507026] [2022-11-16 16:14:33,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:33,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:14:33,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:14:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 16:14:33,706 INFO L87 Difference]: Start difference. First operand 223 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:33,800 INFO L93 Difference]: Finished difference Result 223 states and 257 transitions. [2022-11-16 16:14:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:14:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 17 [2022-11-16 16:14:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:33,802 INFO L225 Difference]: With dead ends: 223 [2022-11-16 16:14:33,802 INFO L226 Difference]: Without dead ends: 220 [2022-11-16 16:14:33,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-11-16 16:14:33,804 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 117 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:33,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 42 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-16 16:14:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2022-11-16 16:14:33,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 202 states have (on average 1.1534653465346534) internal successors, (233), 207 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 233 transitions. [2022-11-16 16:14:33,820 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 233 transitions. Word has length 17 [2022-11-16 16:14:33,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:33,821 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 233 transitions. [2022-11-16 16:14:33,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 233 transitions. [2022-11-16 16:14:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 16:14:33,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:33,822 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1] [2022-11-16 16:14:33,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:34,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:34,028 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:34,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash -117712491, now seen corresponding path program 2 times [2022-11-16 16:14:34,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:34,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519960260] [2022-11-16 16:14:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:34,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:34,042 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:34,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357455276] [2022-11-16 16:14:34,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:14:34,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:34,046 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:34,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 16:14:34,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 16:14:34,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:14:34,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:34,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 16:14:34,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-16 16:14:34,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:34,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519960260] [2022-11-16 16:14:34,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:34,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357455276] [2022-11-16 16:14:34,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357455276] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:34,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133512978] [2022-11-16 16:14:34,226 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-16 16:14:34,226 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:34,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:34,226 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:34,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,321 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:34,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:34,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2022-11-16 16:14:34,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-16 16:14:34,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:14:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:34,681 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-16 16:14:34,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 477 treesize of output 397 [2022-11-16 16:14:34,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-16 16:14:35,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 165 [2022-11-16 16:14:35,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:35,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:35,365 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 16:14:35,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 155 [2022-11-16 16:14:35,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,610 INFO L321 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2022-11-16 16:14:35,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 224 [2022-11-16 16:14:35,736 INFO L321 Elim1Store]: treesize reduction 162, result has 8.5 percent of original size [2022-11-16 16:14:35,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 272 treesize of output 256 [2022-11-16 16:14:35,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:35,865 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:36,922 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6545#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:36,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:36,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:36,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-16 16:14:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229105897] [2022-11-16 16:14:36,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:36,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:14:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:14:36,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-16 16:14:36,924 INFO L87 Difference]: Start difference. First operand 208 states and 233 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:37,022 INFO L93 Difference]: Finished difference Result 208 states and 233 transitions. [2022-11-16 16:14:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:14:37,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 33 [2022-11-16 16:14:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:37,023 INFO L225 Difference]: With dead ends: 208 [2022-11-16 16:14:37,024 INFO L226 Difference]: Without dead ends: 205 [2022-11-16 16:14:37,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:14:37,025 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 61 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:37,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 27 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:14:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-16 16:14:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 121. [2022-11-16 16:14:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1610169491525424) internal successors, (137), 120 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2022-11-16 16:14:37,043 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 33 [2022-11-16 16:14:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:37,043 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2022-11-16 16:14:37,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2022-11-16 16:14:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 16:14:37,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:37,044 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-16 16:14:37,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:37,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 16:14:37,249 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1517349503, now seen corresponding path program 1 times [2022-11-16 16:14:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:37,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384376170] [2022-11-16 16:14:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:37,259 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:37,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183762396] [2022-11-16 16:14:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:37,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:37,263 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:37,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 16:14:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:37,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 16:14:37,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 16:14:37,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 16:14:37,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:37,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384376170] [2022-11-16 16:14:37,520 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:37,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183762396] [2022-11-16 16:14:37,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183762396] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:37,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1490561758] [2022-11-16 16:14:37,529 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:14:37,530 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:37,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:37,530 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:37,531 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:37,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,608 INFO L321 Elim1Store]: treesize reduction 85, result has 29.2 percent of original size [2022-11-16 16:14:37,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 59 [2022-11-16 16:14:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,705 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:37,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:37,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:37,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:37,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-16 16:14:38,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,039 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-16 16:14:38,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 485 treesize of output 401 [2022-11-16 16:14:38,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:38,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:38,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:38,698 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 16:14:38,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 239 treesize of output 161 [2022-11-16 16:14:38,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:38,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:38,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-16 16:14:39,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:39,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:39,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:39,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:39,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:39,643 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:40,835 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7260#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:40,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:40,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:40,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-16 16:14:40,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288735648] [2022-11-16 16:14:40,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:40,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 16:14:40,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:40,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 16:14:40,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-11-16 16:14:40,837 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:41,180 INFO L93 Difference]: Finished difference Result 347 states and 414 transitions. [2022-11-16 16:14:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 16:14:41,181 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-16 16:14:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:41,182 INFO L225 Difference]: With dead ends: 347 [2022-11-16 16:14:41,182 INFO L226 Difference]: Without dead ends: 229 [2022-11-16 16:14:41,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2022-11-16 16:14:41,184 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 202 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:41,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 66 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:14:41,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-16 16:14:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-11-16 16:14:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 226 states have (on average 1.084070796460177) internal successors, (245), 228 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 245 transitions. [2022-11-16 16:14:41,206 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 245 transitions. Word has length 40 [2022-11-16 16:14:41,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:41,208 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 245 transitions. [2022-11-16 16:14:41,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 245 transitions. [2022-11-16 16:14:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 16:14:41,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:41,213 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-16 16:14:41,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-16 16:14:41,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:41,418 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-16 16:14:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:41,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2111542209, now seen corresponding path program 2 times [2022-11-16 16:14:41,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:41,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061217914] [2022-11-16 16:14:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:41,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:41,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:14:41,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045561091] [2022-11-16 16:14:41,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:14:41,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:14:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:41,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:14:41,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 16:14:41,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 16:14:41,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:14:41,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:14:41,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-16 16:14:41,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-16 16:14:41,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:41,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061217914] [2022-11-16 16:14:41,763 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:14:41,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045561091] [2022-11-16 16:14:41,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045561091] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:14:41,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [156890072] [2022-11-16 16:14:41,765 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:14:41,765 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:14:41,765 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:14:41,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:14:41,766 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:14:41,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:41,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:41,848 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 16:14:41,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 16:14:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:41,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2022-11-16 16:14:41,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:41,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-16 16:14:42,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-16 16:14:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:14:42,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,174 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-16 16:14:42,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 477 treesize of output 397 [2022-11-16 16:14:42,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:42,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:42,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:42,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,706 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 16:14:42,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 239 treesize of output 161 [2022-11-16 16:14:42,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:42,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:42,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:42,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:43,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-16 16:14:43,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:43,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-16 16:14:43,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-16 16:14:43,612 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:14:44,715 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8526#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 16:14:44,715 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:14:44,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 16:14:44,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-16 16:14:44,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522769477] [2022-11-16 16:14:44,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 16:14:44,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:14:44,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:44,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:14:44,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:14:44,717 INFO L87 Difference]: Start difference. First operand 229 states and 245 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:44,801 INFO L93 Difference]: Finished difference Result 229 states and 245 transitions. [2022-11-16 16:14:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:14:44,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 16:14:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:44,802 INFO L225 Difference]: With dead ends: 229 [2022-11-16 16:14:44,802 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:14:44,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-11-16 16:14:44,803 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:44,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:14:44,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:14:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:14:44,804 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) [2022-11-16 16:14:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:14:44,804 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2022-11-16 16:14:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:44,804 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:14:44,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:14:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:14:44,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:14:44,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-16 16:14:44,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-16 16:14:44,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-16 16:14:44,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-16 16:14:44,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-16 16:14:44,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-16 16:14:44,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 16:14:45,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 16:14:45,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 16:14:46,230 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 75) no Hoare annotation was computed. [2022-11-16 16:14:46,230 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-16 16:14:46,230 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:14:46,231 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 16:14:46,232 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 35) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,232 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 35) no Hoare annotation was computed. [2022-11-16 16:14:46,232 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-16 16:14:46,232 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 57) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,233 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-16 16:14:46,236 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 73) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-16 16:14:46,236 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 73) no Hoare annotation was computed. [2022-11-16 16:14:46,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:14:46,237 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-16 16:14:46,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-16 16:14:46,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-16 16:14:46,239 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 33) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-16 16:14:46,239 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 33) no Hoare annotation was computed. [2022-11-16 16:14:46,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-16 16:14:46,239 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-16 16:14:46,240 INFO L899 garLoopResultBuilder]: For program point L72-1(line 72) no Hoare annotation was computed. [2022-11-16 16:14:46,240 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-16 16:14:46,240 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 55) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,240 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 55) no Hoare annotation was computed. [2022-11-16 16:14:46,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-16 16:14:46,240 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-16 16:14:46,241 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-16 16:14:46,241 INFO L895 garLoopResultBuilder]: At program point L65-2(lines 65 77) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-16 16:14:46,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-16 16:14:46,241 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-16 16:14:46,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 16:14:46,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-16 16:14:46,242 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 37) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-16 16:14:46,242 INFO L895 garLoopResultBuilder]: At program point L50-2(lines 50 53) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-16 16:14:46,242 INFO L899 garLoopResultBuilder]: For program point L50-3(lines 50 53) no Hoare annotation was computed. [2022-11-16 16:14:46,243 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-11-16 16:14:46,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-16 16:14:46,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-16 16:14:46,243 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-11-16 16:14:46,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-16 16:14:46,244 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 75) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-16 16:14:46,247 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:46,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:14:46,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:14:46 BoogieIcfgContainer [2022-11-16 16:14:46,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:14:46,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:14:46,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:14:46,293 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:14:46,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:21" (3/4) ... [2022-11-16 16:14:46,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:14:46,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-16 16:14:46,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-16 16:14:46,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 16:14:46,312 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:14:46,364 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:14:46,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:14:46,365 INFO L158 Benchmark]: Toolchain (without parser) took 25566.06ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 84.7MB in the beginning and 144.7MB in the end (delta: -60.0MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,365 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:14:46,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.49ms. Allocated memory is still 123.7MB. Free memory was 84.6MB in the beginning and 100.5MB in the end (delta: -16.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 123.7MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,366 INFO L158 Benchmark]: Boogie Preprocessor took 41.58ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,367 INFO L158 Benchmark]: RCFGBuilder took 513.17ms. Allocated memory is still 123.7MB. Free memory was 96.8MB in the beginning and 80.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,367 INFO L158 Benchmark]: TraceAbstraction took 24556.37ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 79.6MB in the beginning and 147.9MB in the end (delta: -68.3MB). Peak memory consumption was 144.5MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,367 INFO L158 Benchmark]: Witness Printer took 74.54ms. Allocated memory is still 272.6MB. Free memory was 147.9MB in the beginning and 144.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:14:46,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.49ms. Allocated memory is still 123.7MB. Free memory was 84.6MB in the beginning and 100.5MB in the end (delta: -16.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 123.7MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.58ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.17ms. Allocated memory is still 123.7MB. Free memory was 96.8MB in the beginning and 80.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24556.37ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 79.6MB in the beginning and 147.9MB in the end (delta: -68.3MB). Peak memory consumption was 144.5MB. Max. memory is 16.1GB. * Witness Printer took 74.54ms. Allocated memory is still 272.6MB. Free memory was 147.9MB in the beginning and 144.7MB 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: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 24.4s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1207 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1207 mSDsluCounter, 657 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 309 mSDsCounter, 357 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 632 IncrementalHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 357 mSolverCounterUnsat, 348 mSDtfsCounter, 632 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 608 GetRequests, 503 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=13, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 378 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 93 NumberOfFragments, 306 HoareAnnotationTreeSize, 9 FomulaSimplifications, 498 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5790 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 237 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 406 ConstructedInterpolants, 0 QuantifiedInterpolants, 1156 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1179 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 922/1752 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 18 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 RESULT: Ultimate proved your program to be correct! [2022-11-16 16:14:46,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7da52faa-ff7f-4471-8151-2cee19646694/bin/utaipan-Xvt2sAort0/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