./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/eureka_05.i --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_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/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_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/eureka_05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/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_83981286-9398-4ac5-8e03-c84213423224/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 3f12ca1e314a03dfb1c8beadd0c1a180c2d2339dd5f3109d5999df06d52395ab --- 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 16:10:08,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:10:08,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:10:08,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:10:08,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:10:08,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:10:08,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:10:08,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:10:08,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:10:08,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:10:08,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:10:08,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:10:08,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:10:08,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:10:08,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:10:08,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:10:08,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:10:08,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:10:08,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:10:08,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:10:08,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:10:08,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:10:08,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:10:08,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:10:08,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:10:08,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:10:08,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:10:08,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:10:08,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:10:08,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:10:08,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:10:08,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:10:08,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:10:08,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:10:08,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:10:08,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:10:08,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:10:08,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:10:08,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:10:08,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:10:08,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:10:08,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:10:08,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:10:08,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:10:08,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:10:08,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:10:08,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:10:08,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:10:08,601 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:10:08,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:10:08,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:10:08,602 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:10:08,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:10:08,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:10:08,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:10:08,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:10:08,603 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:10:08,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:10:08,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:10:08,604 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:10:08,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:10:08,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:10:08,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:10:08,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:10:08,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:10:08,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:10:08,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:10:08,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:10:08,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:10:08,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:10:08,607 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:10:08,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:10:08,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:10:08,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:10:08,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:10:08,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:10:08,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:10:08,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:10:08,609 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:10:08,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:10:08,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:10:08,609 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:10:08,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:10:08,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:10:08,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:10:08,610 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_83981286-9398-4ac5-8e03-c84213423224/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f12ca1e314a03dfb1c8beadd0c1a180c2d2339dd5f3109d5999df06d52395ab [2022-11-16 16:10:08,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:10:08,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:10:08,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:10:08,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:10:08,942 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:10:08,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/loops/eureka_05.i [2022-11-16 16:10:09,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/data/9f707f9f7/d78466b22b204527b81e37dac966e3ac/FLAGfffa983d0 [2022-11-16 16:10:09,530 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:10:09,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/sv-benchmarks/c/loops/eureka_05.i [2022-11-16 16:10:09,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/data/9f707f9f7/d78466b22b204527b81e37dac966e3ac/FLAGfffa983d0 [2022-11-16 16:10:09,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/data/9f707f9f7/d78466b22b204527b81e37dac966e3ac [2022-11-16 16:10:09,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:10:09,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:10:09,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:10:09,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:10:09,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:10:09,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:10:09" (1/1) ... [2022-11-16 16:10:09,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b0db54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:09, skipping insertion in model container [2022-11-16 16:10:09,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:10:09" (1/1) ... [2022-11-16 16:10:09,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:10:09,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:10:10,134 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_83981286-9398-4ac5-8e03-c84213423224/sv-benchmarks/c/loops/eureka_05.i[810,823] [2022-11-16 16:10:10,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:10:10,160 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:10:10,172 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_83981286-9398-4ac5-8e03-c84213423224/sv-benchmarks/c/loops/eureka_05.i[810,823] [2022-11-16 16:10:10,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:10:10,201 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:10:10,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10 WrapperNode [2022-11-16 16:10:10,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:10:10,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:10:10,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:10:10,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:10:10,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,259 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2022-11-16 16:10:10,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:10:10,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:10:10,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:10:10,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:10:10,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:10:10,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:10:10,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:10:10,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:10:10,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (1/1) ... [2022-11-16 16:10:10,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:10:10,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:10,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:10:10,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:10:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:10:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:10:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:10:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:10:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:10:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:10:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:10:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:10:10,496 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:10:10,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:10:10,740 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:10:10,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:10:10,845 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 16:10:10,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:10:10 BoogieIcfgContainer [2022-11-16 16:10:10,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:10:10,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:10:10,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:10:10,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:10:10,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:10:09" (1/3) ... [2022-11-16 16:10:10,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a38008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:10:10, skipping insertion in model container [2022-11-16 16:10:10,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:10:10" (2/3) ... [2022-11-16 16:10:10,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a38008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:10:10, skipping insertion in model container [2022-11-16 16:10:10,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:10:10" (3/3) ... [2022-11-16 16:10:10,857 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_05.i [2022-11-16 16:10:10,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:10:10,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 16:10:10,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:10:10,928 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;@22bde544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:10:10,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 16:10:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 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 16:10:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 16:10:10,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:10,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 16:10:10,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:10,956 INFO L85 PathProgramCache]: Analyzing trace with hash 129965, now seen corresponding path program 1 times [2022-11-16 16:10:10,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:10,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611060120] [2022-11-16 16:10:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:10,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:11,287 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 16:10:11,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:11,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611060120] [2022-11-16 16:10:11,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611060120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:11,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:11,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:11,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901328677] [2022-11-16 16:10:11,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:11,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:11,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:11,331 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 16:10:11,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:11,426 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-16 16:10:11,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-16 16:10:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:11,440 INFO L225 Difference]: With dead ends: 28 [2022-11-16 16:10:11,440 INFO L226 Difference]: Without dead ends: 25 [2022-11-16 16:10:11,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:11,452 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:11,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 34 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-16 16:10:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-16 16:10:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.8) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 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 16:10:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-16 16:10:11,495 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 3 [2022-11-16 16:10:11,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:11,495 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-16 16:10:11,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 16:10:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-16 16:10:11,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 16:10:11,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:11,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 16:10:11,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:10:11,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:11,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash 4028961, now seen corresponding path program 1 times [2022-11-16 16:10:11,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:11,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424258481] [2022-11-16 16:10:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:11,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:11,621 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 16:10:11,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:11,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424258481] [2022-11-16 16:10:11,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424258481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:11,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:11,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:11,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211154054] [2022-11-16 16:10:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:11,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:11,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:11,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:11,630 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:11,716 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-16 16:10:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:11,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 16:10:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:11,719 INFO L225 Difference]: With dead ends: 47 [2022-11-16 16:10:11,720 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 16:10:11,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:11,726 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:11,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 16:10:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 16:10:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 26 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 16:10:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-16 16:10:11,735 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2022-11-16 16:10:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:11,736 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-16 16:10:11,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-16 16:10:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 16:10:11,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:11,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-16 16:10:11,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:10:11,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:11,739 INFO L85 PathProgramCache]: Analyzing trace with hash -232180797, now seen corresponding path program 1 times [2022-11-16 16:10:11,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:11,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195028821] [2022-11-16 16:10:11,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:11,815 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 16:10:11,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:11,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195028821] [2022-11-16 16:10:11,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195028821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:11,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:11,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154435189] [2022-11-16 16:10:11,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:11,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:10:11,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:10:11,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:11,819 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:11,844 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-16 16:10:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:10:11,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 16:10:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:11,846 INFO L225 Difference]: With dead ends: 27 [2022-11-16 16:10:11,846 INFO L226 Difference]: Without dead ends: 26 [2022-11-16 16:10:11,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:11,848 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:11,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:11,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-16 16:10:11,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-16 16:10:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.6875) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 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 16:10:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-16 16:10:11,854 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-11-16 16:10:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:11,854 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-16 16:10:11,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-16 16:10:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 16:10:11,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:11,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:11,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:10:11,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -232164012, now seen corresponding path program 1 times [2022-11-16 16:10:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:11,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514250736] [2022-11-16 16:10:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:10:11,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:11,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514250736] [2022-11-16 16:10:11,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514250736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:11,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:11,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991277629] [2022-11-16 16:10:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:11,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:10:11,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:10:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:11,904 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:11,945 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-16 16:10:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:10:11,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 16:10:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:11,946 INFO L225 Difference]: With dead ends: 43 [2022-11-16 16:10:11,947 INFO L226 Difference]: Without dead ends: 41 [2022-11-16 16:10:11,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:11,948 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:11,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-16 16:10:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2022-11-16 16:10:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.631578947368421) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 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 16:10:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-16 16:10:11,956 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 7 [2022-11-16 16:10:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:11,957 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-16 16:10:11,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-16 16:10:11,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:10:11,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:11,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:11,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:10:11,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:11,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:11,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1392926814, now seen corresponding path program 1 times [2022-11-16 16:10:11,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:11,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61484937] [2022-11-16 16:10:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:10:12,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:12,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61484937] [2022-11-16 16:10:12,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61484937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:12,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:12,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:10:12,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556146950] [2022-11-16 16:10:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:12,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:12,036 INFO L87 Difference]: Start difference. First operand 27 states and 31 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 16:10:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:12,073 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-16 16:10:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:12,074 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 16:10:12,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:12,075 INFO L225 Difference]: With dead ends: 41 [2022-11-16 16:10:12,075 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 16:10:12,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 16:10:12,076 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:12,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 16:10:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2022-11-16 16:10:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 26 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 16:10:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-16 16:10:12,082 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 8 [2022-11-16 16:10:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:12,082 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-16 16:10:12,083 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 16:10:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-16 16:10:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 16:10:12,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:12,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:12,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:10:12,084 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:12,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1500670838, now seen corresponding path program 1 times [2022-11-16 16:10:12,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:12,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223895758] [2022-11-16 16:10:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:10:12,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:12,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223895758] [2022-11-16 16:10:12,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223895758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:12,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:12,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:10:12,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895276343] [2022-11-16 16:10:12,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:12,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:10:12,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:12,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:10:12,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:12,158 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 16:10:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:12,293 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-11-16 16:10:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:10:12,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-16 16:10:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:12,295 INFO L225 Difference]: With dead ends: 55 [2022-11-16 16:10:12,295 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 16:10:12,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 16:10:12,300 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 38 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:12,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 59 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:12,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 16:10:12,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 29. [2022-11-16 16:10:12,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 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 16:10:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-16 16:10:12,306 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 10 [2022-11-16 16:10:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:12,307 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-16 16:10:12,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 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 16:10:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-16 16:10:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 16:10:12,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:12,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:12,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:10:12,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:12,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:12,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1500671014, now seen corresponding path program 1 times [2022-11-16 16:10:12,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:12,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548307273] [2022-11-16 16:10:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 16:10:12,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:12,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548307273] [2022-11-16 16:10:12,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548307273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:12,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:12,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:10:12,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137888933] [2022-11-16 16:10:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:12,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:12,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:12,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:12,421 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 16:10:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:12,491 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-16 16:10:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:12,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-16 16:10:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:12,495 INFO L225 Difference]: With dead ends: 38 [2022-11-16 16:10:12,495 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 16:10:12,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:12,496 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:12,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 16:10:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-11-16 16:10:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 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 16:10:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2022-11-16 16:10:12,509 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 10 [2022-11-16 16:10:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:12,509 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2022-11-16 16:10:12,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 16:10:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-11-16 16:10:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 16:10:12,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:12,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:12,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:10:12,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash 723844359, now seen corresponding path program 1 times [2022-11-16 16:10:12,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:12,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611357123] [2022-11-16 16:10:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:10:12,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611357123] [2022-11-16 16:10:12,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611357123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087668858] [2022-11-16 16:10:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:12,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:12,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:12,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:12,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:10:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:12,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:10:12,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:10:12,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:10:12,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087668858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:12,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1783665431] [2022-11-16 16:10:12,803 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:10:12,803 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:12,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:12,812 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:12,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:12,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:12,941 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-16 16:10:12,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2022-11-16 16:10:12,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,009 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:13,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:13,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:13,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:10:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:13,356 INFO L321 Elim1Store]: treesize reduction 240, result has 21.6 percent of original size [2022-11-16 16:10:13,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 310 treesize of output 300 [2022-11-16 16:10:13,596 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 15 treesize of output 11 [2022-11-16 16:10:13,618 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 15 treesize of output 11 [2022-11-16 16:10:13,658 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:14,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1783665431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:14,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:14,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 13 [2022-11-16 16:10:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847954443] [2022-11-16 16:10:14,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:14,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:10:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:10:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 16:10:14,040 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:14,154 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2022-11-16 16:10:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:10:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 16:10:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:14,156 INFO L225 Difference]: With dead ends: 63 [2022-11-16 16:10:14,156 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 16:10:14,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 16:10:14,157 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 50 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:14,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 53 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 16:10:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2022-11-16 16:10:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 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 16:10:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-11-16 16:10:14,164 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 11 [2022-11-16 16:10:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:14,165 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-11-16 16:10:14,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-11-16 16:10:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 16:10:14,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:14,166 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:14,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 16:10:14,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 16:10:14,372 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash -170268441, now seen corresponding path program 1 times [2022-11-16 16:10:14,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:14,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474831611] [2022-11-16 16:10:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:14,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:10:14,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:14,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474831611] [2022-11-16 16:10:14,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474831611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:14,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165558027] [2022-11-16 16:10:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:14,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:14,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:14,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:10:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:14,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:10:14,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:10:14,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:10:14,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165558027] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:14,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1346402993] [2022-11-16 16:10:14,537 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:10:14,539 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:14,539 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:14,539 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:14,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:14,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,592 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-16 16:10:14,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2022-11-16 16:10:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,641 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:14,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:14,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:10:14,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:14,918 INFO L321 Elim1Store]: treesize reduction 240, result has 21.6 percent of original size [2022-11-16 16:10:14,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 310 treesize of output 300 [2022-11-16 16:10:15,233 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 15 treesize of output 11 [2022-11-16 16:10:15,250 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 15 treesize of output 11 [2022-11-16 16:10:15,363 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:15,981 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '904#(and (= 3 |~#array~0.base|) (<= 0 |ULTIMATE.start_main_~#array~1#1.base|) (= 5 ~n~0) (<= |ULTIMATE.start_main_~i~1#1| 0) (= |~#array~0.offset| 0) (<= 0 |ULTIMATE.start_SelectionSort_~rh~0#1|) (< 2147483646 |ULTIMATE.start_SelectionSort_#t~post2#1|) (<= 1 |ULTIMATE.start_SelectionSort_~i~0#1|) (= |ULTIMATE.start_main_~#array~1#1.offset| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_SelectionSort_~lh~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 16:10:15,981 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:10:15,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-16 16:10:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478676934] [2022-11-16 16:10:15,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:10:15,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 16:10:15,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 16:10:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-11-16 16:10:15,983 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:16,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:16,057 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2022-11-16 16:10:16,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 16:10:16,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 16:10:16,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:16,058 INFO L225 Difference]: With dead ends: 76 [2022-11-16 16:10:16,058 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 16:10:16,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-16 16:10:16,060 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:16,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 91 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 16:10:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2022-11-16 16:10:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2022-11-16 16:10:16,068 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 13 [2022-11-16 16:10:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:16,068 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2022-11-16 16:10:16,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-11-16 16:10:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 16:10:16,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:16,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:16,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 16:10:16,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:16,274 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:16,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1383056345, now seen corresponding path program 2 times [2022-11-16 16:10:16,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:16,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187937112] [2022-11-16 16:10:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:16,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:10:16,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:16,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187937112] [2022-11-16 16:10:16,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187937112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:16,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14147775] [2022-11-16 16:10:16,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 16:10:16,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:16,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:16,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:16,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:10:16,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 16:10:16,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 16:10:16,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 16:10:16,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 16:10:16,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 16:10:16,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14147775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1066062220] [2022-11-16 16:10:16,618 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:10:16,618 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:16,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:16,619 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:16,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:16,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,673 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:16,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:16,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,689 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 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 16:10:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:16,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:16,918 INFO L321 Elim1Store]: treesize reduction 286, result has 15.1 percent of original size [2022-11-16 16:10:16,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 315 treesize of output 299 [2022-11-16 16:10:17,046 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 15 treesize of output 11 [2022-11-16 16:10:17,063 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 15 treesize of output 11 [2022-11-16 16:10:17,178 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:17,894 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1181#(and (= 3 |~#array~0.base|) (<= 0 |ULTIMATE.start_main_~#array~1#1.base|) (= 5 ~n~0) (<= |ULTIMATE.start_main_~i~1#1| 0) (= |~#array~0.offset| 0) (<= 0 |ULTIMATE.start_SelectionSort_~rh~0#1|) (< 2147483646 |ULTIMATE.start_SelectionSort_#t~post2#1|) (<= 1 |ULTIMATE.start_SelectionSort_~i~0#1|) (= |ULTIMATE.start_main_~#array~1#1.offset| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_SelectionSort_~lh~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 16:10:17,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 16:10:17,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:17,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 2, 2] total 12 [2022-11-16 16:10:17,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974906788] [2022-11-16 16:10:17,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 16:10:17,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 16:10:17,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 16:10:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-11-16 16:10:17,897 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 12 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 16:10:18,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:18,073 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2022-11-16 16:10:18,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 16:10:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 12 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 19 [2022-11-16 16:10:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:18,075 INFO L225 Difference]: With dead ends: 75 [2022-11-16 16:10:18,075 INFO L226 Difference]: Without dead ends: 45 [2022-11-16 16:10:18,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2022-11-16 16:10:18,077 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:18,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 95 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:18,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-16 16:10:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-11-16 16:10:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 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 16:10:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-16 16:10:18,084 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 19 [2022-11-16 16:10:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:18,084 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-16 16:10:18,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 12 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 16:10:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-16 16:10:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 16:10:18,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:18,085 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:18,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:18,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 16:10:18,286 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:18,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1924170068, now seen corresponding path program 1 times [2022-11-16 16:10:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:18,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541314720] [2022-11-16 16:10:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:18,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:18,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541314720] [2022-11-16 16:10:18,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541314720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:18,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349251290] [2022-11-16 16:10:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:18,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:18,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:18,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:18,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:10:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:18,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 16:10:18,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:18,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:18,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349251290] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:18,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1196046370] [2022-11-16 16:10:18,616 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 16:10:18,616 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:18,616 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:18,616 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:18,617 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,684 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:18,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:18,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,700 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 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 16:10:18,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:18,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:18,900 INFO L321 Elim1Store]: treesize reduction 286, result has 15.1 percent of original size [2022-11-16 16:10:18,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 315 treesize of output 299 [2022-11-16 16:10:19,018 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 15 treesize of output 11 [2022-11-16 16:10:19,033 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 15 treesize of output 11 [2022-11-16 16:10:19,146 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:19,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1196046370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:19,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:19,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 10, 10] total 17 [2022-11-16 16:10:19,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194543566] [2022-11-16 16:10:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:19,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 16:10:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 16:10:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 16:10:19,757 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:20,280 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2022-11-16 16:10:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 16:10:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 16:10:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:20,281 INFO L225 Difference]: With dead ends: 49 [2022-11-16 16:10:20,281 INFO L226 Difference]: Without dead ends: 48 [2022-11-16 16:10:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 49 SyntacticMatches, 12 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2022-11-16 16:10:20,282 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 44 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:20,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 47 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-16 16:10:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2022-11-16 16:10:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-16 16:10:20,289 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 23 [2022-11-16 16:10:20,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:20,289 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-16 16:10:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-16 16:10:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 16:10:20,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:20,290 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:20,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:20,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:20,491 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:20,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1998237480, now seen corresponding path program 1 times [2022-11-16 16:10:20,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:20,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317041268] [2022-11-16 16:10:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 16:10:20,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:20,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317041268] [2022-11-16 16:10:20,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317041268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:20,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718061058] [2022-11-16 16:10:20,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:20,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:20,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:20,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:20,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:10:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:20,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 16:10:20,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:20,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 16:10:20,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718061058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:20,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2079052515] [2022-11-16 16:10:20,864 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 16:10:20,865 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:20,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:20,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:20,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,926 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:20,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,942 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 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 16:10:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:20,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:21,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:21,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:10:21,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:21,142 INFO L321 Elim1Store]: treesize reduction 240, result has 21.6 percent of original size [2022-11-16 16:10:21,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 310 treesize of output 300 [2022-11-16 16:10:21,274 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 15 treesize of output 11 [2022-11-16 16:10:21,287 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 15 treesize of output 11 [2022-11-16 16:10:21,467 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:21,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:21,815 INFO L321 Elim1Store]: treesize reduction 87, result has 41.6 percent of original size [2022-11-16 16:10:21,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 139 treesize of output 165 [2022-11-16 16:10:22,042 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:22,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:22,553 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:22,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:22,574 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:24,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2079052515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:24,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:24,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 10, 10] total 23 [2022-11-16 16:10:24,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784983132] [2022-11-16 16:10:24,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:24,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 16:10:24,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 16:10:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-16 16:10:24,103 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 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 16:10:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:24,754 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-11-16 16:10:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 16:10:24,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 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 25 [2022-11-16 16:10:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:24,755 INFO L225 Difference]: With dead ends: 46 [2022-11-16 16:10:24,755 INFO L226 Difference]: Without dead ends: 41 [2022-11-16 16:10:24,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 43 SyntacticMatches, 13 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-16 16:10:24,756 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:24,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 31 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:10:24,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-16 16:10:24,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2022-11-16 16:10:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 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 16:10:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-11-16 16:10:24,763 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 25 [2022-11-16 16:10:24,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:24,764 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-11-16 16:10:24,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 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 16:10:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-11-16 16:10:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 16:10:24,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:24,765 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:24,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:24,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 16:10:24,971 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1815896330, now seen corresponding path program 1 times [2022-11-16 16:10:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:24,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830460658] [2022-11-16 16:10:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 16:10:25,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:25,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830460658] [2022-11-16 16:10:25,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830460658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:25,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:25,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:10:25,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695764184] [2022-11-16 16:10:25,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:25,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:10:25,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:10:25,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:10:25,065 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:25,106 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-11-16 16:10:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:10:25,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-16 16:10:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:25,109 INFO L225 Difference]: With dead ends: 36 [2022-11-16 16:10:25,109 INFO L226 Difference]: Without dead ends: 34 [2022-11-16 16:10:25,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:10:25,111 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:25,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-16 16:10:25,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-16 16:10:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.15625) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 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 16:10:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-16 16:10:25,128 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 26 [2022-11-16 16:10:25,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:25,129 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-16 16:10:25,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:10:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-16 16:10:25,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 16:10:25,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:25,132 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:25,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 16:10:25,132 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:25,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2040374570, now seen corresponding path program 1 times [2022-11-16 16:10:25,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:25,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402708215] [2022-11-16 16:10:25,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:25,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-16 16:10:25,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:25,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402708215] [2022-11-16 16:10:25,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402708215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:25,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:10:25,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:10:25,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495584488] [2022-11-16 16:10:25,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:25,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:10:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:10:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:25,196 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 16:10:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:25,222 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-16 16:10:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:10:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 29 [2022-11-16 16:10:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:25,223 INFO L225 Difference]: With dead ends: 34 [2022-11-16 16:10:25,224 INFO L226 Difference]: Without dead ends: 33 [2022-11-16 16:10:25,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:10:25,225 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:25,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:10:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-16 16:10:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-16 16:10:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 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 16:10:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-16 16:10:25,235 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 29 [2022-11-16 16:10:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:25,236 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-16 16:10:25,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 16:10:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-16 16:10:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 16:10:25,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:10:25,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:25,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 16:10:25,242 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 16:10:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:10:25,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1172897889, now seen corresponding path program 1 times [2022-11-16 16:10:25,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:10:25,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915649340] [2022-11-16 16:10:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:10:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-16 16:10:25,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:10:25,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915649340] [2022-11-16 16:10:25,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915649340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 16:10:25,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383170132] [2022-11-16 16:10:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:10:25,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:10:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:10:25,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:10:25,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:10:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:10:25,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 16:10:25,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:10:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 16:10:25,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:10:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 16:10:25,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383170132] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:10:25,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [370533608] [2022-11-16 16:10:25,646 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-16 16:10:25,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:10:25,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:10:25,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:10:25,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:10:25,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,685 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-16 16:10:25,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2022-11-16 16:10:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,724 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:10:25,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-16 16:10:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-16 16:10:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:10:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:25,920 INFO L321 Elim1Store]: treesize reduction 240, result has 21.6 percent of original size [2022-11-16 16:10:25,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 310 treesize of output 300 [2022-11-16 16:10:26,141 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 15 treesize of output 11 [2022-11-16 16:10:26,153 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 15 treesize of output 11 [2022-11-16 16:10:26,284 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:26,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:26,594 INFO L321 Elim1Store]: treesize reduction 87, result has 41.6 percent of original size [2022-11-16 16:10:26,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 139 treesize of output 165 [2022-11-16 16:10:27,028 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:27,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:27,558 INFO L321 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-11-16 16:10:27,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 26 [2022-11-16 16:10:27,573 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 16:10:29,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [370533608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:10:29,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 16:10:29,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 10, 10] total 26 [2022-11-16 16:10:29,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767453277] [2022-11-16 16:10:29,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:10:29,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 16:10:29,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:10:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 16:10:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2022-11-16 16:10:29,414 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 16:10:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:10:30,660 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-16 16:10:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 16:10:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 30 [2022-11-16 16:10:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:10:30,661 INFO L225 Difference]: With dead ends: 33 [2022-11-16 16:10:30,661 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:10:30,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 55 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2022-11-16 16:10:30,663 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:10:30,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:10:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:10:30,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:10:30,664 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 16:10:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:10:30,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-16 16:10:30,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:10:30,665 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:10:30,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 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 16:10:30,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:10:30,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:10:30,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-16 16:10:30,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-16 16:10:30,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-16 16:10:30,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-16 16:10:30,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-16 16:10:30,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-16 16:10:30,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-16 16:10:30,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-16 16:10:30,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-16 16:10:30,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-16 16:10:30,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 16:10:30,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 16:10:30,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 16:10:31,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,612 INFO L899 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2022-11-16 16:10:31,612 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2022-11-16 16:10:31,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-16 16:10:31,612 INFO L895 garLoopResultBuilder]: At program point L44-5(lines 44 45) the Hoare annotation is: (and (= 3 |~#array~0.base|) (<= 0 |ULTIMATE.start_main_~#array~1#1.base|) (= 5 ~n~0) (= |~#array~0.offset| 0) (= |ULTIMATE.start_main_~#array~1#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~1#1| 4) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point L32-5(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point L32-6(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,613 INFO L895 garLoopResultBuilder]: At program point L32-7(lines 32 33) the Hoare annotation is: (and (<= |ULTIMATE.start_SelectionSort_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_SelectionSort_~lh~0#1|) (= 3 |~#array~0.base|) (<= 0 |ULTIMATE.start_main_~#array~1#1.base|) (<= |ULTIMATE.start_SelectionSort_~lh~0#1| 5) (= 5 ~n~0) (<= |ULTIMATE.start_main_~i~1#1| 0) (= |~#array~0.offset| 0) (<= 0 |ULTIMATE.start_SelectionSort_~rh~0#1|) (<= 1 |ULTIMATE.start_SelectionSort_~i~0#1|) (= |ULTIMATE.start_main_~#array~1#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-16 16:10:31,613 INFO L899 garLoopResultBuilder]: For program point L49-3(line 49) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point L49-4(line 49) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L895 garLoopResultBuilder]: At program point L49-5(lines 49 50) the Hoare annotation is: (and (<= 5 ~n~0) (<= ~n~0 5) (let ((.cse0 (<= |ULTIMATE.start_SelectionSort_~i~0#1| 2147483647)) (.cse1 (<= 0 |#NULL.base|)) (.cse2 (<= 3 |~#array~0.base|)) (.cse3 (<= |ULTIMATE.start_main_~#array~1#1.offset| 0)) (.cse4 (<= 0 |~#array~0.offset|)) (.cse5 (<= 0 |ULTIMATE.start_main_~#array~1#1.base|)) (.cse6 (<= 5 |ULTIMATE.start_SelectionSort_~lh~0#1|)) (.cse7 (<= |#NULL.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~#array~1#1.offset|)) (.cse9 (<= 0 |ULTIMATE.start_SelectionSort_~rh~0#1|)) (.cse10 (<= |#NULL.base| 0)) (.cse11 (<= |~#array~0.base| 3)) (.cse12 (<= 0 |#NULL.offset|)) (.cse13 (<= 5 |ULTIMATE.start_SelectionSort_~i~0#1|)) (.cse14 (<= |~#array~0.offset| 0)) (.cse15 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 .cse2 (<= 0 |ULTIMATE.start_main_~i~1#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) .cse9 (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) .cse10 .cse11 (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) .cse12 .cse13 .cse14 .cse15)))) [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-11-16 16:10:31,615 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-16 16:10:31,615 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2022-11-16 16:10:31,615 INFO L899 garLoopResultBuilder]: For program point L30-4(line 30) no Hoare annotation was computed. [2022-11-16 16:10:31,615 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 37) the Hoare annotation is: (let ((.cse0 (= 3 |~#array~0.base|)) (.cse1 (<= 0 |ULTIMATE.start_main_~#array~1#1.base|)) (.cse2 (= 5 ~n~0)) (.cse3 (= |~#array~0.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~#array~1#1.offset| 0)) (.cse5 (= |#NULL.offset| 0)) (.cse6 (<= 0 |#StackHeapBarrier|)) (.cse7 (= |#NULL.base| 0))) (or (and (<= |ULTIMATE.start_SelectionSort_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_SelectionSort_~lh~0#1|) .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse3 (<= 0 |ULTIMATE.start_SelectionSort_~rh~0#1|) .cse4 .cse5 (<= 5 |ULTIMATE.start_SelectionSort_~i~0#1|) .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (< |ULTIMATE.start_main_~i~1#1| 0) (= |ULTIMATE.start_SelectionSort_~lh~0#1| 0) .cse6 .cse7))) [2022-11-16 16:10:31,615 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-16 16:10:31,629 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:10:31,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:10:31,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:10:31 BoogieIcfgContainer [2022-11-16 16:10:31,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:10:31,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:10:31,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:10:31,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:10:31,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:10:10" (3/4) ... [2022-11-16 16:10:31,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:10:31,690 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-16 16:10:31,690 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 16:10:31,690 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 16:10:31,691 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 16:10:31,714 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (5 <= n && n <= 5) && ((((((((((((((((((i <= 2147483647 && 0 <= #NULL) && 3 <= array) && 0 <= i) && array <= 0) && 0 <= array) && 0 <= array) && 5 <= lh) && #NULL <= 0) && 0 <= array) && i <= 0) && 0 <= rh) && #NULL <= 0) && array <= 3) && 0 <= #NULL) && 5 <= i) && array <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((i <= 2147483647 && 0 <= #NULL) && 3 <= array) && array <= 0) && 0 <= array) && 0 <= array) && 5 <= lh) && #NULL <= 0) && 0 <= array) && i <= 2147483647) && cond <= 1) && 0 <= rh) && 1 <= i) && \old(cond) <= 1) && #NULL <= 0) && array <= 3) && 0 <= cond) && 0 <= \old(cond)) && 0 <= #NULL) && 5 <= i) && array <= 0) && 0 <= unknown-#StackHeapBarrier-unknown)) [2022-11-16 16:10:31,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:10:31,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:10:31,727 INFO L158 Benchmark]: Toolchain (without parser) took 21823.87ms. Allocated memory was 115.3MB in the beginning and 299.9MB in the end (delta: 184.5MB). Free memory was 72.8MB in the beginning and 269.8MB in the end (delta: -197.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:10:31,727 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:10:31,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.87ms. Allocated memory is still 115.3MB. Free memory was 72.6MB in the beginning and 90.1MB in the end (delta: -17.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.08ms. Allocated memory is still 115.3MB. Free memory was 90.1MB in the beginning and 88.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,728 INFO L158 Benchmark]: Boogie Preprocessor took 48.04ms. Allocated memory is still 115.3MB. Free memory was 88.2MB in the beginning and 87.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,728 INFO L158 Benchmark]: RCFGBuilder took 539.19ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,729 INFO L158 Benchmark]: TraceAbstraction took 20822.53ms. Allocated memory was 115.3MB in the beginning and 299.9MB in the end (delta: 184.5MB). Free memory was 70.7MB in the beginning and 272.9MB in the end (delta: -202.2MB). Peak memory consumption was 159.2MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,729 INFO L158 Benchmark]: Witness Printer took 52.91ms. Allocated memory is still 299.9MB. Free memory was 272.9MB in the beginning and 269.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:10:31,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.87ms. Allocated memory is still 115.3MB. Free memory was 72.6MB in the beginning and 90.1MB in the end (delta: -17.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.08ms. Allocated memory is still 115.3MB. Free memory was 90.1MB in the beginning and 88.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.04ms. Allocated memory is still 115.3MB. Free memory was 88.2MB in the beginning and 87.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.19ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 20822.53ms. Allocated memory was 115.3MB in the beginning and 299.9MB in the end (delta: 184.5MB). Free memory was 70.7MB in the beginning and 272.9MB in the end (delta: -202.2MB). Peak memory consumption was 159.2MB. Max. memory is 16.1GB. * Witness Printer took 52.91ms. Allocated memory is still 299.9MB. Free memory was 272.9MB in the beginning and 269.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: 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: 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: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: 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, 26 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 453 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 816 IncrementalHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 190 mSDtfsCounter, 816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 241 SyntacticMatches, 45 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=10, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 84 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 273 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1003 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1101 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 346 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 926 SizeOfPredicates, 17 NumberOfNonLiveVariables, 657 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 27 InterpolantComputations, 9 PerfectInterpolantSequences, 165/342 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: OVERALL_TIME: 5.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 57, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 199, TOOLS_POST_TIME: 4.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 199, TOOLS_QUANTIFIERELIM_TIME: 4.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 342, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 26, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 36, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 57, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 16, LOOP_SUMMARIZER_CACHE_MISSES: 16, LOOP_SUMMARIZER_OVERALL_TIME: 3.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 36, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1084, DAG_COMPRESSION_RETAINED_NODES: 200, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((i <= 2147483647 && 1 <= lh) && 3 == array) && 0 <= array) && 5 == n) && i <= 0) && array == 0) && 0 <= rh) && array == 0) && #NULL == 0) && 5 <= i) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((3 == array && 0 <= array) && 5 == n) && array == 0) && array == 0) && #NULL == 0) && i < 0) && lh == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((i <= 2147483647 && 0 <= lh) && 3 == array) && 0 <= array) && lh <= 5) && 5 == n) && i <= 0) && array == 0) && 0 <= rh) && 1 <= i) && array == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (5 <= n && n <= 5) && ((((((((((((((((((i <= 2147483647 && 0 <= #NULL) && 3 <= array) && 0 <= i) && array <= 0) && 0 <= array) && 0 <= array) && 5 <= lh) && #NULL <= 0) && 0 <= array) && i <= 0) && 0 <= rh) && #NULL <= 0) && array <= 3) && 0 <= #NULL) && 5 <= i) && array <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((i <= 2147483647 && 0 <= #NULL) && 3 <= array) && array <= 0) && 0 <= array) && 0 <= array) && 5 <= lh) && #NULL <= 0) && 0 <= array) && i <= 2147483647) && cond <= 1) && 0 <= rh) && 1 <= i) && \old(cond) <= 1) && #NULL <= 0) && array <= 3) && 0 <= cond) && 0 <= \old(cond)) && 0 <= #NULL) && 5 <= i) && array <= 0) && 0 <= unknown-#StackHeapBarrier-unknown)) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((((3 == array && 0 <= array) && 5 == n) && array == 0) && array == 0) && #NULL == 0) && i <= 4) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 16:10:31,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83981286-9398-4ac5-8e03-c84213423224/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