./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/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_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/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_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/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 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee --- 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 19:59:11,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:59:11,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:59:11,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:59:11,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:59:11,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:59:11,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:59:11,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:59:11,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:59:11,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:59:11,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:59:11,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:59:11,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:59:11,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:59:11,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:59:11,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:59:11,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:59:11,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:59:11,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:59:11,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:59:11,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:59:11,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:59:11,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:59:11,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:59:11,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:59:11,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:59:11,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:59:11,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:59:11,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:59:11,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:59:11,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:59:11,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:59:11,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:59:11,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:59:11,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:59:11,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:59:11,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:59:11,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:59:11,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:59:11,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:59:11,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:59:11,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:59:11,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:59:11,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:59:11,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:59:11,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:59:11,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:59:11,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:59:11,305 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:59:11,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:59:11,306 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:59:11,306 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:59:11,307 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:59:11,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:59:11,307 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:59:11,307 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:59:11,308 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:59:11,308 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:59:11,308 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:59:11,309 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:59:11,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:59:11,310 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:59:11,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:59:11,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:59:11,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:59:11,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:59:11,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:59:11,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:59:11,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:59:11,312 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:59:11,313 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:59:11,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:59:11,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:59:11,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:59:11,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:59:11,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:59:11,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:59:11,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:59:11,315 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:59:11,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:59:11,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:59:11,316 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:59:11,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:59:11,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:59:11,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:59:11,317 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_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee [2022-11-16 19:59:11,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:59:11,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:59:11,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:59:11,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:59:11,652 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:59:11,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2022-11-16 19:59:11,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/data/e81e4b2d6/cd6409ea064d4f1dbb65cd1a23c899a4/FLAG991714bed [2022-11-16 19:59:12,257 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:59:12,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2022-11-16 19:59:12,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/data/e81e4b2d6/cd6409ea064d4f1dbb65cd1a23c899a4/FLAG991714bed [2022-11-16 19:59:12,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/data/e81e4b2d6/cd6409ea064d4f1dbb65cd1a23c899a4 [2022-11-16 19:59:12,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:59:12,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:59:12,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:59:12,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:59:12,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:59:12,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:12,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79cdc9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12, skipping insertion in model container [2022-11-16 19:59:12,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:12,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:59:12,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:59:12,841 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_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c[416,429] [2022-11-16 19:59:12,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:59:12,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:59:12,899 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_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c[416,429] [2022-11-16 19:59:12,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:59:12,947 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:59:12,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12 WrapperNode [2022-11-16 19:59:12,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:59:12,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:59:12,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:59:12,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:59:12,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:12,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,001 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2022-11-16 19:59:13,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:59:13,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:59:13,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:59:13,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:59:13,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:59:13,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:59:13,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:59:13,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:59:13,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (1/1) ... [2022-11-16 19:59:13,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:59:13,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:13,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:59:13,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:59:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:59:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 19:59:13,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 19:59:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:59:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:59:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:59:13,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:59:13,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:59:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:59:13,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:59:13,191 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:59:13,193 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:59:13,397 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:59:13,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:59:13,451 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 19:59:13,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:59:13 BoogieIcfgContainer [2022-11-16 19:59:13,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:59:13,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:59:13,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:59:13,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:59:13,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:59:12" (1/3) ... [2022-11-16 19:59:13,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e93b8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:59:13, skipping insertion in model container [2022-11-16 19:59:13,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:59:12" (2/3) ... [2022-11-16 19:59:13,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e93b8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:59:13, skipping insertion in model container [2022-11-16 19:59:13,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:59:13" (3/3) ... [2022-11-16 19:59:13,466 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-2-n-u.c [2022-11-16 19:59:13,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:59:13,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-16 19:59:13,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:59:13,557 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;@7d341970, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:59:13,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-16 19:59:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:13,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:59:13,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:13,574 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:13,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:13,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:13,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1475097158, now seen corresponding path program 1 times [2022-11-16 19:59:13,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283660529] [2022-11-16 19:59:13,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:13,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:13,770 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:13,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838958553] [2022-11-16 19:59:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:13,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:13,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:13,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:13,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:59:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:13,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:59:13,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:14,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:59:14,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:14,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283660529] [2022-11-16 19:59:14,022 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838958553] [2022-11-16 19:59:14,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838958553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:14,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:59:14,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:59:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573188477] [2022-11-16 19:59:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:14,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:59:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:14,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:59:14,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:59:14,076 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:14,196 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-11-16 19:59:14,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:59:14,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2022-11-16 19:59:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:14,212 INFO L225 Difference]: With dead ends: 65 [2022-11-16 19:59:14,212 INFO L226 Difference]: Without dead ends: 60 [2022-11-16 19:59:14,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 19:59:14,223 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:14,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 36 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:59:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-16 19:59:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2022-11-16 19:59:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 47 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2022-11-16 19:59:14,277 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 11 [2022-11-16 19:59:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:14,279 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2022-11-16 19:59:14,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2022-11-16 19:59:14,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:59:14,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:14,281 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:14,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:14,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 19:59:14,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:14,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1475101040, now seen corresponding path program 1 times [2022-11-16 19:59:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:14,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190685020] [2022-11-16 19:59:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:14,503 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650125055] [2022-11-16 19:59:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:14,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:14,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:14,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:14,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:59:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:14,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:59:14,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:14,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:59:14,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:14,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190685020] [2022-11-16 19:59:14,634 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:14,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650125055] [2022-11-16 19:59:14,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650125055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:14,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:59:14,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:59:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603216018] [2022-11-16 19:59:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:14,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:59:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:59:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:59:14,641 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:14,777 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2022-11-16 19:59:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:59:14,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2022-11-16 19:59:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:14,781 INFO L225 Difference]: With dead ends: 90 [2022-11-16 19:59:14,782 INFO L226 Difference]: Without dead ends: 87 [2022-11-16 19:59:14,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 19:59:14,790 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:14,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 39 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:59:14,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-16 19:59:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2022-11-16 19:59:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.7083333333333333) internal successors, (82), 59 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2022-11-16 19:59:14,811 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 11 [2022-11-16 19:59:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:14,812 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2022-11-16 19:59:14,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2022-11-16 19:59:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 19:59:14,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:14,813 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:14,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:15,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:15,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1516628422, now seen corresponding path program 1 times [2022-11-16 19:59:15,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:15,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562297407] [2022-11-16 19:59:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:15,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:15,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66738670] [2022-11-16 19:59:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:15,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:59:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:15,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:59:15,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:15,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:59:15,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:15,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562297407] [2022-11-16 19:59:15,147 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:15,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66738670] [2022-11-16 19:59:15,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66738670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:15,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:59:15,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:59:15,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99973471] [2022-11-16 19:59:15,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:15,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:59:15,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:59:15,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:59:15,155 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:15,220 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2022-11-16 19:59:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:59:15,221 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2022-11-16 19:59:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:15,222 INFO L225 Difference]: With dead ends: 63 [2022-11-16 19:59:15,222 INFO L226 Difference]: Without dead ends: 60 [2022-11-16 19:59:15,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 19:59:15,224 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:15,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:59:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-16 19:59:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-16 19:59:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 56 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2022-11-16 19:59:15,236 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 12 [2022-11-16 19:59:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:15,236 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-16 19:59:15,236 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2022-11-16 19:59:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 19:59:15,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:15,237 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:15,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:15,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:15,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1516508073, now seen corresponding path program 1 times [2022-11-16 19:59:15,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:15,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557415480] [2022-11-16 19:59:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:15,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:15,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103817090] [2022-11-16 19:59:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:15,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:15,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:59:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:15,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:59:15,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:15,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:59:15,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:15,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557415480] [2022-11-16 19:59:15,541 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:15,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103817090] [2022-11-16 19:59:15,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103817090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:15,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:59:15,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:59:15,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065843924] [2022-11-16 19:59:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:15,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:59:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:59:15,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:59:15,552 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:15,619 INFO L93 Difference]: Finished difference Result 60 states and 83 transitions. [2022-11-16 19:59:15,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:59:15,619 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2022-11-16 19:59:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:15,629 INFO L225 Difference]: With dead ends: 60 [2022-11-16 19:59:15,629 INFO L226 Difference]: Without dead ends: 57 [2022-11-16 19:59:15,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 19:59:15,633 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:15,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:59:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-16 19:59:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-16 19:59:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 53 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2022-11-16 19:59:15,655 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 12 [2022-11-16 19:59:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:15,656 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2022-11-16 19:59:15,656 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2022-11-16 19:59:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 19:59:15,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:15,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:15,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:15,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:15,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:15,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1370346507, now seen corresponding path program 1 times [2022-11-16 19:59:15,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:15,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554324555] [2022-11-16 19:59:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:15,878 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:15,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840997020] [2022-11-16 19:59:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:15,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:15,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:15,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 19:59:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:15,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 19:59:15,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:16,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:59:16,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:16,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554324555] [2022-11-16 19:59:16,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:16,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840997020] [2022-11-16 19:59:16,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840997020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:16,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [389467055] [2022-11-16 19:59:16,109 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 19:59:16,110 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:16,114 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:16,119 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:16,120 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:16,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:16,293 INFO L321 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2022-11-16 19:59:16,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 57 [2022-11-16 19:59:16,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:16,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:16,453 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 19:59:16,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 19:59:16,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:16,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-16 19:59:17,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:17,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:17,218 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-16 19:59:17,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 390 treesize of output 373 [2022-11-16 19:59:17,535 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 20 treesize of output 16 [2022-11-16 19:59:17,564 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 20 treesize of output 16 [2022-11-16 19:59:17,662 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-16 19:59:17,757 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:59:18,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [389467055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:18,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:59:18,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3] total 11 [2022-11-16 19:59:18,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93721265] [2022-11-16 19:59:18,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:18,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 19:59:18,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 19:59:18,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 19:59:18,906 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:20,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:20,101 INFO L93 Difference]: Finished difference Result 110 states and 143 transitions. [2022-11-16 19:59:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 19:59:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-16 19:59:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:20,102 INFO L225 Difference]: With dead ends: 110 [2022-11-16 19:59:20,102 INFO L226 Difference]: Without dead ends: 65 [2022-11-16 19:59:20,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-16 19:59:20,104 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:20,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 26 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 96 Invalid, 0 Unknown, 49 Unchecked, 0.3s Time] [2022-11-16 19:59:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-16 19:59:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2022-11-16 19:59:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 52 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2022-11-16 19:59:20,139 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 14 [2022-11-16 19:59:20,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:20,140 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2022-11-16 19:59:20,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2022-11-16 19:59:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 19:59:20,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:20,141 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:20,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:20,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:20,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 890049389, now seen corresponding path program 1 times [2022-11-16 19:59:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:20,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727839828] [2022-11-16 19:59:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:20,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:20,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044682215] [2022-11-16 19:59:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:20,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:20,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:20,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:20,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 19:59:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:20,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 19:59:20,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:59:20,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 19:59:20,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:20,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727839828] [2022-11-16 19:59:20,542 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:20,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044682215] [2022-11-16 19:59:20,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044682215] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:20,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1621988611] [2022-11-16 19:59:20,550 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 19:59:20,550 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:20,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:20,551 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:20,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:20,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:20,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:20,666 INFO L321 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2022-11-16 19:59:20,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 57 [2022-11-16 19:59:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:20,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:20,791 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 19:59:20,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 19:59:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:21,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-16 19:59:21,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:21,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:21,434 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-16 19:59:21,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 390 treesize of output 373 [2022-11-16 19:59:21,709 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 20 treesize of output 16 [2022-11-16 19:59:21,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-16 19:59:21,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 111 [2022-11-16 19:59:21,911 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 20 treesize of output 16 [2022-11-16 19:59:22,024 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 20 treesize of output 16 [2022-11-16 19:59:22,112 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 20 treesize of output 16 [2022-11-16 19:59:22,225 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 20 treesize of output 16 [2022-11-16 19:59:22,310 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 19:59:22,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 107 [2022-11-16 19:59:22,441 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 20 treesize of output 16 [2022-11-16 19:59:22,500 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 20 treesize of output 16 [2022-11-16 19:59:22,570 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 19:59:22,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 107 [2022-11-16 19:59:22,715 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 20 treesize of output 16 [2022-11-16 19:59:22,779 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 20 treesize of output 16 [2022-11-16 19:59:22,889 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-16 19:59:22,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:59:24,938 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1275#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~q~0#1| 500) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-16 19:59:24,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:59:24,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:59:24,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 19:59:24,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577939872] [2022-11-16 19:59:24,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 19:59:24,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 19:59:24,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 19:59:24,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-16 19:59:24,940 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 19:59:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:25,233 INFO L93 Difference]: Finished difference Result 201 states and 258 transitions. [2022-11-16 19:59:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:59:25,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 18 [2022-11-16 19:59:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:25,237 INFO L225 Difference]: With dead ends: 201 [2022-11-16 19:59:25,237 INFO L226 Difference]: Without dead ends: 156 [2022-11-16 19:59:25,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-11-16 19:59:25,242 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 213 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:25,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 54 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:59:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-16 19:59:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 85. [2022-11-16 19:59:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 76 states have (on average 1.3026315789473684) internal successors, (99), 81 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 103 transitions. [2022-11-16 19:59:25,336 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 103 transitions. Word has length 18 [2022-11-16 19:59:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:25,336 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 103 transitions. [2022-11-16 19:59:25,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 19:59:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 103 transitions. [2022-11-16 19:59:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 19:59:25,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:25,338 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:25,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:25,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 19:59:25,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:25,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1752166568, now seen corresponding path program 1 times [2022-11-16 19:59:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:25,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134335628] [2022-11-16 19:59:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:25,566 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:25,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883718602] [2022-11-16 19:59:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:25,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:25,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:25,570 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:25,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 19:59:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:25,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 19:59:25,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 36 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:59:25,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 36 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:59:25,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134335628] [2022-11-16 19:59:25,861 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883718602] [2022-11-16 19:59:25,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883718602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:25,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365739887] [2022-11-16 19:59:25,864 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 19:59:25,864 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:25,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:25,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:25,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:25,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:25,948 INFO L321 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2022-11-16 19:59:25,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 57 [2022-11-16 19:59:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:26,052 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 19:59:26,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 19:59:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:26,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-16 19:59:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:26,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:26,543 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-11-16 19:59:26,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 382 treesize of output 375 [2022-11-16 19:59:26,948 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 20 treesize of output 16 [2022-11-16 19:59:26,975 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 20 treesize of output 16 [2022-11-16 19:59:27,034 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 19:59:27,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 113 [2022-11-16 19:59:27,173 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 20 treesize of output 16 [2022-11-16 19:59:27,274 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 20 treesize of output 16 [2022-11-16 19:59:27,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-16 19:59:27,423 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 20 treesize of output 16 [2022-11-16 19:59:27,487 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 19:59:27,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 107 [2022-11-16 19:59:27,602 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 20 treesize of output 16 [2022-11-16 19:59:27,650 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 20 treesize of output 16 [2022-11-16 19:59:27,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 105 [2022-11-16 19:59:27,764 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 20 treesize of output 16 [2022-11-16 19:59:27,844 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 20 treesize of output 16 [2022-11-16 19:59:27,971 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-16 19:59:28,029 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:59:30,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [365739887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:30,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:59:30,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 22 [2022-11-16 19:59:30,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703806638] [2022-11-16 19:59:30,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:30,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 19:59:30,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:30,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 19:59:30,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2022-11-16 19:59:30,132 INFO L87 Difference]: Start difference. First operand 85 states and 103 transitions. Second operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:32,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:32,435 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2022-11-16 19:59:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 19:59:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-11-16 19:59:32,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:32,437 INFO L225 Difference]: With dead ends: 89 [2022-11-16 19:59:32,437 INFO L226 Difference]: Without dead ends: 87 [2022-11-16 19:59:32,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=153, Invalid=549, Unknown=0, NotChecked=0, Total=702 [2022-11-16 19:59:32,439 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 57 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:32,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 11 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 167 Invalid, 0 Unknown, 34 Unchecked, 0.4s Time] [2022-11-16 19:59:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-16 19:59:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 69. [2022-11-16 19:59:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 65 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2022-11-16 19:59:32,469 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 33 [2022-11-16 19:59:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:32,470 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2022-11-16 19:59:32,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:32,470 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2022-11-16 19:59:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 19:59:32,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:32,471 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:32,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:32,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:32,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:32,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1069248016, now seen corresponding path program 1 times [2022-11-16 19:59:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:32,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271725531] [2022-11-16 19:59:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:32,687 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:32,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633521997] [2022-11-16 19:59:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:32,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:32,690 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:32,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 19:59:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:32,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 19:59:32,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:59:32,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 19:59:32,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271725531] [2022-11-16 19:59:32,988 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633521997] [2022-11-16 19:59:32,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633521997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [78334674] [2022-11-16 19:59:32,991 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-16 19:59:32,991 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:32,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:32,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:32,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:33,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,112 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 19:59:33,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 19:59:33,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 19:59:33,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-16 19:59:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2022-11-16 19:59:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,680 INFO L321 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-11-16 19:59:33,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 406 [2022-11-16 19:59:33,826 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 20 treesize of output 16 [2022-11-16 19:59:33,925 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 20 treesize of output 16 [2022-11-16 19:59:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:33,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-16 19:59:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:34,039 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 19:59:34,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 140 [2022-11-16 19:59:34,142 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 20 treesize of output 16 [2022-11-16 19:59:34,230 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 20 treesize of output 16 [2022-11-16 19:59:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:34,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-16 19:59:34,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:34,337 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 19:59:34,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 134 [2022-11-16 19:59:34,391 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 20 treesize of output 16 [2022-11-16 19:59:34,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:34,633 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:34,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:34,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:34,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:34,693 INFO L321 Elim1Store]: treesize reduction 34, result has 32.0 percent of original size [2022-11-16 19:59:34,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 139 [2022-11-16 19:59:34,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:34,775 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:34,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:34,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:34,819 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:34,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:34,983 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-16 19:59:34,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 230 [2022-11-16 19:59:35,105 INFO L321 Elim1Store]: treesize reduction 146, result has 16.1 percent of original size [2022-11-16 19:59:35,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 251 [2022-11-16 19:59:35,180 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 20 treesize of output 16 [2022-11-16 19:59:35,284 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-16 19:59:35,328 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:59:37,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [78334674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:37,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:59:37,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 8] total 26 [2022-11-16 19:59:37,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890745133] [2022-11-16 19:59:37,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:37,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 19:59:37,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:37,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 19:59:37,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2022-11-16 19:59:37,028 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:40,418 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2022-11-16 19:59:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 19:59:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-11-16 19:59:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:40,420 INFO L225 Difference]: With dead ends: 117 [2022-11-16 19:59:40,420 INFO L226 Difference]: Without dead ends: 113 [2022-11-16 19:59:40,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 71 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 19:59:40,422 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 149 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:40,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 12 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 186 Invalid, 0 Unknown, 50 Unchecked, 0.5s Time] [2022-11-16 19:59:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-16 19:59:40,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 73. [2022-11-16 19:59:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 69 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:59:40,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2022-11-16 19:59:40,456 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 34 [2022-11-16 19:59:40,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:40,456 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2022-11-16 19:59:40,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:40,457 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2022-11-16 19:59:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 19:59:40,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:59:40,458 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:40,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:40,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:40,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-16 19:59:40,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:59:40,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1109654766, now seen corresponding path program 1 times [2022-11-16 19:59:40,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:59:40,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052940675] [2022-11-16 19:59:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:40,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:59:40,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:59:40,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155841384] [2022-11-16 19:59:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:59:40,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:40,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:59:40,675 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:59:40,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 19:59:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:59:40,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 19:59:40,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:59:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 19:59:40,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:59:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-16 19:59:40,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:59:40,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052940675] [2022-11-16 19:59:40,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:59:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155841384] [2022-11-16 19:59:40,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155841384] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:59:40,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [523163570] [2022-11-16 19:59:40,951 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-16 19:59:40,951 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:59:40,952 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:59:40,952 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:59:40,952 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:59:40,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:40,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,040 INFO L321 Elim1Store]: treesize reduction 80, result has 29.8 percent of original size [2022-11-16 19:59:41,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 57 [2022-11-16 19:59:41,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,146 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-16 19:59:41,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-16 19:59:41,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-16 19:59:41,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2022-11-16 19:59:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:59:41,662 INFO L321 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-11-16 19:59:41,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 406 [2022-11-16 19:59:41,798 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 20 treesize of output 16 [2022-11-16 19:59:41,884 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 20 treesize of output 16 [2022-11-16 19:59:41,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-16 19:59:41,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 144 [2022-11-16 19:59:42,047 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 20 treesize of output 16 [2022-11-16 19:59:42,128 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 20 treesize of output 16 [2022-11-16 19:59:42,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-16 19:59:42,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 138 [2022-11-16 19:59:42,269 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 20 treesize of output 16 [2022-11-16 19:59:42,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,498 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:42,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:42,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,601 INFO L321 Elim1Store]: treesize reduction 101, result has 39.2 percent of original size [2022-11-16 19:59:42,602 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 126 treesize of output 153 [2022-11-16 19:59:42,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,865 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:42,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:42,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,901 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:42,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:42,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:42,954 INFO L321 Elim1Store]: treesize reduction 34, result has 32.0 percent of original size [2022-11-16 19:59:42,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 139 [2022-11-16 19:59:43,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,035 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,137 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,207 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,320 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,401 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,491 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,563 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:59:43,630 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-16 19:59:43,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-16 19:59:43,783 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-16 19:59:43,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 230 [2022-11-16 19:59:43,949 INFO L321 Elim1Store]: treesize reduction 126, result has 10.6 percent of original size [2022-11-16 19:59:43,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 264 treesize of output 255 [2022-11-16 19:59:44,039 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 20 treesize of output 16 [2022-11-16 19:59:44,150 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-16 19:59:44,203 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:59:46,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [523163570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:59:46,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:59:46,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8, 8] total 28 [2022-11-16 19:59:46,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378597487] [2022-11-16 19:59:46,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:59:46,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 19:59:46,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:59:46,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 19:59:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2022-11-16 19:59:46,175 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:49,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:59:49,536 INFO L93 Difference]: Finished difference Result 89 states and 106 transitions. [2022-11-16 19:59:49,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 19:59:49,536 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-11-16 19:59:49,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:59:49,537 INFO L225 Difference]: With dead ends: 89 [2022-11-16 19:59:49,537 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:59:49,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=321, Invalid=1239, Unknown=0, NotChecked=0, Total=1560 [2022-11-16 19:59:49,539 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 83 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:59:49,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 4 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 159 Invalid, 0 Unknown, 38 Unchecked, 0.3s Time] [2022-11-16 19:59:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:59:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:59:49,540 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 19:59:49,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:59:49,541 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-11-16 19:59:49,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:59:49,541 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:59:49,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:59:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:59:49,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:59:49,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-16 19:59:49,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-16 19:59:49,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-16 19:59:49,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-16 19:59:49,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-16 19:59:49,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-16 19:59:49,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-16 19:59:49,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-16 19:59:49,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-16 19:59:49,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-16 19:59:49,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-16 19:59:49,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-16 19:59:49,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 19:59:49,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:59:49,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 19:59:53,926 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-16 19:59:53,926 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-16 19:59:53,926 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-16 19:59:53,926 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2022-11-16 19:59:53,926 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-16 19:59:53,927 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 19:59:53,927 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 70) the Hoare annotation is: (let ((.cse24 (select |#memory_int| 1)) (.cse25 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 500)) (.cse8 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (= .cse25 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse11 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse12 (= (select |#valid| 1) 1)) (.cse13 (= (select |#valid| 0) 0)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= |#NULL.offset| 0)) (.cse16 (= |ULTIMATE.start_main_~s~0#1| 700)) (.cse17 (= .cse25 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse18 (= (select .cse24 0) 48)) (.cse19 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse20 (= (select .cse24 1) 0)) (.cse21 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse22 (< 0 |#StackHeapBarrier|)) (.cse23 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~i~0#1| 1000) .cse9 .cse10 .cse11 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse12 (<= |ULTIMATE.start_main_~j~0#1| 2147483646) .cse13 (<= 700 |ULTIMATE.start_main_~j~0#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse20 .cse21 .cse22 .cse23) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~j~0#1| 0) .cse20 .cse21 .cse22 .cse23)))) [2022-11-16 19:59:53,927 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-16 19:59:53,927 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 54) the Hoare annotation is: (let ((.cse24 (select |#memory_int| 1)) (.cse25 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 500)) (.cse8 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (= .cse25 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse11 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse12 (= (select |#valid| 1) 1)) (.cse13 (= (select |#valid| 0) 0)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= |#NULL.offset| 0)) (.cse16 (= |ULTIMATE.start_main_~s~0#1| 700)) (.cse17 (= .cse25 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse18 (= (select .cse24 0) 48)) (.cse19 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse20 (= (select .cse24 1) 0)) (.cse21 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse22 (< 0 |#StackHeapBarrier|)) (.cse23 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~i~0#1| 1000) .cse9 .cse10 .cse11 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse12 (<= |ULTIMATE.start_main_~j~0#1| 2147483646) .cse13 (<= 700 |ULTIMATE.start_main_~j~0#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse20 .cse21 .cse22 .cse23) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~j~0#1| 0) .cse20 .cse21 .cse22 .cse23)))) [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-16 19:59:53,928 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: (let ((.cse0 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= (select |#valid| 0) 0) (<= |ULTIMATE.start_main_~i~0#1| 500) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= .cse0 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|)) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-16 19:59:53,928 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2022-11-16 19:59:53,929 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 52) the Hoare annotation is: (let ((.cse0 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= (select |#valid| 0) 0) (<= |ULTIMATE.start_main_~i~0#1| 500) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= .cse0 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|)) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-16 19:59:53,929 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 52) no Hoare annotation was computed. [2022-11-16 19:59:53,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2022-11-16 19:59:53,929 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2022-11-16 19:59:53,929 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-11-16 19:59:53,929 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 41) the Hoare annotation is: (let ((.cse24 (select |#memory_int| 1)) (.cse25 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 500)) (.cse8 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (= .cse25 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse11 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse12 (= (select |#valid| 1) 1)) (.cse13 (= (select |#valid| 0) 0)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= |#NULL.offset| 0)) (.cse16 (= |ULTIMATE.start_main_~s~0#1| 700)) (.cse17 (= .cse25 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse18 (= (select .cse24 0) 48)) (.cse19 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse20 (= (select .cse24 1) 0)) (.cse21 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse22 (< 0 |#StackHeapBarrier|)) (.cse23 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse4 .cse5 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse20 .cse21 .cse22 .cse23) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~j~0#1| 0) .cse20 .cse21 .cse22 .cse23)))) [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2022-11-16 19:59:53,930 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 39) the Hoare annotation is: (let ((.cse3 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4)) (.cse4 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= (select |#length| 3) 12) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 500)) (.cse2 (<= 0 |ULTIMATE.start_main_~j~0#1|))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 1000)) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2))) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= .cse3 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= .cse3 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|)) (= (select .cse4 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse4 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-16 19:59:53,930 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 39) no Hoare annotation was computed. [2022-11-16 19:59:53,931 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-16 19:59:53,931 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= .cse0 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|)) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-16 19:59:53,931 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (let ((.cse0 (* (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= .cse0 (select |#length| |ULTIMATE.start_main_~#A~0#1.base|)) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-16 19:59:53,931 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-16 19:59:53,932 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-16 19:59:53,932 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-16 19:59:53,932 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-16 19:59:53,932 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-16 19:59:53,935 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:59:53,937 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:59:53,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:59:53 BoogieIcfgContainer [2022-11-16 19:59:53,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:59:53,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:59:53,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:59:53,976 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:59:53,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:59:13" (3/4) ... [2022-11-16 19:59:53,979 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:59:53,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-16 19:59:54,003 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-16 19:59:54,005 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 19:59:54,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 19:59:54,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:59:54,064 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:59:54,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:59:54,065 INFO L158 Benchmark]: Toolchain (without parser) took 41484.77ms. Allocated memory was 121.6MB in the beginning and 394.3MB in the end (delta: 272.6MB). Free memory was 85.2MB in the beginning and 253.0MB in the end (delta: -167.7MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,066 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:59:54,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.09ms. Allocated memory is still 121.6MB. Free memory was 85.0MB in the beginning and 98.7MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.80ms. Allocated memory is still 121.6MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:59:54,067 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,067 INFO L158 Benchmark]: RCFGBuilder took 422.91ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 79.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,067 INFO L158 Benchmark]: TraceAbstraction took 40517.32ms. Allocated memory was 121.6MB in the beginning and 394.3MB in the end (delta: 272.6MB). Free memory was 78.9MB in the beginning and 256.1MB in the end (delta: -177.2MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,068 INFO L158 Benchmark]: Witness Printer took 89.33ms. Allocated memory is still 394.3MB. Free memory was 256.1MB in the beginning and 253.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 19:59:54,069 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 121.6MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.09ms. Allocated memory is still 121.6MB. Free memory was 85.0MB in the beginning and 98.7MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.80ms. Allocated memory is still 121.6MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 95.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.91ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 79.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 40517.32ms. Allocated memory was 121.6MB in the beginning and 394.3MB in the end (delta: 272.6MB). Free memory was 78.9MB in the beginning and 256.1MB in the end (delta: -177.2MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. * Witness Printer took 89.33ms. Allocated memory is still 394.3MB. Free memory was 256.1MB in the beginning and 253.0MB in the end (delta: 3.1MB). 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: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: 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 2 procedures, 37 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 40.4s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 665 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 665 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 171 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 278 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 819 IncrementalHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 278 mSolverCounterUnsat, 120 mSDtfsCounter, 819 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 479 GetRequests, 323 SyntacticMatches, 24 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=6, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 171 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 41 NumberOfFragments, 1383 HoareAnnotationTreeSize, 10 FomulaSimplifications, 2304 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 17897 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 838 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1029 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 166/304 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: 9.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 70, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 279, TOOLS_POST_TIME: 7.0s, TOOLS_POST_CALL_APPLICATIONS: 24, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 319, TOOLS_QUANTIFIERELIM_TIME: 7.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 531, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 53, DOMAIN_JOIN_TIME: 0.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 40, DOMAIN_WIDEN_TIME: 0.6s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 64, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 70, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 24, LOOP_SUMMARIZER_CACHE_MISSES: 24, LOOP_SUMMARIZER_OVERALL_TIME: 5.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 64, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 4, 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: 1837, DAG_COMPRESSION_RETAINED_NODES: 245, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && 1 <= i) && 1500 <= j) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && i <= 2147483646) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && B <= 0) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && 0 <= j) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483646) && \valid[0] == 0) && i <= 500) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && i <= 1000) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483646) && \valid[0] == 0) && 700 <= j) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && B <= 0) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && 0 <= j) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483646) && \valid[0] == 0) && i <= 500) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && i <= 1000) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483646) && \valid[0] == 0) && 700 <= j) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && B <= 0) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((21 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && unknown-#StackHeapBarrier-unknown < A) && (((((m == 1000 && 1 <= i) && q == 500) && 0 <= j) && i <= 1000) || (((i == 0 && m == 1000) && q == 500) && 0 <= j))) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && \valid[B] == 1) && m * n * 4 == unknown-#length-unknown[B]) && A == 0) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && m * n * 4 == unknown-#length-unknown[A]) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 19:59:54,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5077dc-29d1-4fc7-9518-eaa6944a2dac/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