./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/pr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur --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 5922a5be589e27d89439744489152c928c7510f0140c8b0fb4d1faadee969752 --- 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-38b53e6 [2022-11-25 23:47:35,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:47:35,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:47:35,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:47:35,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:47:35,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:47:35,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:47:35,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:47:35,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:47:35,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:47:35,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:47:35,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:47:35,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:47:35,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:47:35,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:47:35,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:47:35,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:47:35,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:47:35,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:47:35,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:47:35,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:47:35,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:47:35,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:47:35,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:47:35,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:47:35,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:47:35,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:47:35,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:47:35,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:47:35,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:47:35,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:47:35,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:47:35,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:47:35,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:47:35,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:47:35,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:47:35,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:47:35,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:47:35,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:47:35,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:47:35,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:47:35,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:47:35,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:47:35,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:47:35,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:47:35,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:47:35,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:47:35,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:47:35,178 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:47:35,179 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:47:35,179 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:47:35,179 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:47:35,180 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:47:35,181 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:47:35,181 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:47:35,181 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:47:35,181 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:47:35,182 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:47:35,182 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:47:35,182 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:47:35,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:47:35,183 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:47:35,183 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:47:35,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:47:35,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:47:35,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:47:35,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:47:35,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:47:35,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:47:35,185 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:47:35,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:47:35,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:47:35,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:47:35,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:47:35,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:47:35,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:47:35,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:35,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:47:35,187 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:47:35,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:47:35,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:47:35,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:47:35,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:47:35,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:47:35,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:47:35,189 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_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5922a5be589e27d89439744489152c928c7510f0140c8b0fb4d1faadee969752 [2022-11-25 23:47:35,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:47:35,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:47:35,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:47:35,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:47:35,552 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:47:35,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-tiling/pr2.c [2022-11-25 23:47:38,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:47:38,981 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:47:38,982 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/sv-benchmarks/c/array-tiling/pr2.c [2022-11-25 23:47:38,989 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/data/d52a4a4de/50ed83f4a66b417684a83ae087624b05/FLAGd3731da60 [2022-11-25 23:47:39,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/data/d52a4a4de/50ed83f4a66b417684a83ae087624b05 [2022-11-25 23:47:39,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:47:39,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:47:39,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:39,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:47:39,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:47:39,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a12bd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39, skipping insertion in model container [2022-11-25 23:47:39,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:47:39,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:47:39,254 WARN L237 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_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/sv-benchmarks/c/array-tiling/pr2.c[394,407] [2022-11-25 23:47:39,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:39,299 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:47:39,318 WARN L237 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_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/sv-benchmarks/c/array-tiling/pr2.c[394,407] [2022-11-25 23:47:39,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:39,350 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:47:39,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39 WrapperNode [2022-11-25 23:47:39,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:39,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:39,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:47:39,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:47:39,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,409 INFO L138 Inliner]: procedures = 15, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2022-11-25 23:47:39,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:39,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:47:39,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:47:39,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:47:39,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:47:39,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:47:39,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:47:39,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:47:39,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (1/1) ... [2022-11-25 23:47:39,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:39,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:39,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:47:39,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:47:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:47:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:47:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:47:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:47:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:47:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:47:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:47:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:47:39,628 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:47:39,630 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:47:39,970 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:47:40,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:47:40,065 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:47:40,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:40 BoogieIcfgContainer [2022-11-25 23:47:40,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:47:40,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:47:40,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:47:40,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:47:40,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:47:39" (1/3) ... [2022-11-25 23:47:40,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6584d9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:40, skipping insertion in model container [2022-11-25 23:47:40,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:39" (2/3) ... [2022-11-25 23:47:40,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6584d9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:40, skipping insertion in model container [2022-11-25 23:47:40,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:40" (3/3) ... [2022-11-25 23:47:40,077 INFO L112 eAbstractionObserver]: Analyzing ICFG pr2.c [2022-11-25 23:47:40,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:47:40,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-25 23:47:40,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:47:40,174 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;@7f6da7e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:47:40,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-25 23:47:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 33 states have (on average 1.878787878787879) internal successors, (62), 55 states have internal predecessors, (62), 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) [2022-11-25 23:47:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:47:40,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:40,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:47:40,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:40,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash 4686043, now seen corresponding path program 1 times [2022-11-25 23:47:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375440842] [2022-11-25 23:47:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:40,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:40,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375440842] [2022-11-25 23:47:40,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375440842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:40,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:40,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973290885] [2022-11-25 23:47:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:40,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:40,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:40,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:40,742 INFO L87 Difference]: Start difference. First operand has 56 states, 33 states have (on average 1.878787878787879) internal successors, (62), 55 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:40,838 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2022-11-25 23:47:40,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:40,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 23:47:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:40,848 INFO L225 Difference]: With dead ends: 70 [2022-11-25 23:47:40,849 INFO L226 Difference]: Without dead ends: 52 [2022-11-25 23:47:40,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:40,858 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:40,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 51 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-25 23:47:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-25 23:47:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-25 23:47:40,900 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 4 [2022-11-25 23:47:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:40,901 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-25 23:47:40,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-25 23:47:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:47:40,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:40,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:47:40,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:47:40,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:40,905 INFO L85 PathProgramCache]: Analyzing trace with hash 145267387, now seen corresponding path program 1 times [2022-11-25 23:47:40,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:40,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958516496] [2022-11-25 23:47:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:40,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:41,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:41,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958516496] [2022-11-25 23:47:41,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958516496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:41,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:41,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35853213] [2022-11-25 23:47:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:41,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:41,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:41,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:41,345 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:41,392 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-25 23:47:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:47:41,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 23:47:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:41,394 INFO L225 Difference]: With dead ends: 52 [2022-11-25 23:47:41,394 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 23:47:41,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:41,396 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 102 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:41,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 46 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 23:47:41,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-25 23:47:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 50 states have internal predecessors, (54), 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) [2022-11-25 23:47:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2022-11-25 23:47:41,403 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 5 [2022-11-25 23:47:41,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:41,404 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2022-11-25 23:47:41,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2022-11-25 23:47:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:47:41,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:41,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:41,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:47:41,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:41,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:41,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1666249566, now seen corresponding path program 1 times [2022-11-25 23:47:41,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:41,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869558886] [2022-11-25 23:47:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:41,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:41,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869558886] [2022-11-25 23:47:41,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869558886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:41,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:41,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497637361] [2022-11-25 23:47:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:41,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:41,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:41,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:41,477 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:41,640 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2022-11-25 23:47:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 23:47:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:41,643 INFO L225 Difference]: With dead ends: 94 [2022-11-25 23:47:41,645 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 23:47:41,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:41,656 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:41,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 44 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:47:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 23:47:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2022-11-25 23:47:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 52 states have (on average 1.5) internal successors, (78), 71 states have internal predecessors, (78), 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) [2022-11-25 23:47:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2022-11-25 23:47:41,668 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 8 [2022-11-25 23:47:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:41,669 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2022-11-25 23:47:41,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2022-11-25 23:47:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:47:41,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:41,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:41,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:47:41,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash -114137162, now seen corresponding path program 1 times [2022-11-25 23:47:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:41,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465516018] [2022-11-25 23:47:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:41,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:41,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:41,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465516018] [2022-11-25 23:47:41,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465516018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:41,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:41,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174998216] [2022-11-25 23:47:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:41,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:41,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:41,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:41,806 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:41,901 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2022-11-25 23:47:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:47:41,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:41,903 INFO L225 Difference]: With dead ends: 77 [2022-11-25 23:47:41,904 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 23:47:41,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:41,905 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:41,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 108 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:41,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 23:47:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-25 23:47:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 74 states have internal predecessors, (81), 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) [2022-11-25 23:47:41,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2022-11-25 23:47:41,914 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 9 [2022-11-25 23:47:41,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:41,915 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-11-25 23:47:41,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2022-11-25 23:47:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:47:41,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:41,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:41,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:47:41,916 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:41,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1354047100, now seen corresponding path program 1 times [2022-11-25 23:47:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:41,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109014503] [2022-11-25 23:47:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:41,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:47:42,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:42,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109014503] [2022-11-25 23:47:42,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109014503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:42,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:42,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:42,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320776206] [2022-11-25 23:47:42,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:42,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:42,077 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:42,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:42,205 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2022-11-25 23:47:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:42,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 23:47:42,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:42,206 INFO L225 Difference]: With dead ends: 89 [2022-11-25 23:47:42,206 INFO L226 Difference]: Without dead ends: 80 [2022-11-25 23:47:42,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:42,208 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 77 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:42,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 40 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:42,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-25 23:47:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2022-11-25 23:47:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 74 states have internal predecessors, (80), 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) [2022-11-25 23:47:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-11-25 23:47:42,216 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 12 [2022-11-25 23:47:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:42,216 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-11-25 23:47:42,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-11-25 23:47:42,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 23:47:42,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:42,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:42,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:47:42,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1717103806, now seen corresponding path program 1 times [2022-11-25 23:47:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:42,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532833206] [2022-11-25 23:47:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:42,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:42,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:42,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532833206] [2022-11-25 23:47:42,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532833206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:42,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:42,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:42,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351792917] [2022-11-25 23:47:42,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:42,290 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-25 23:47:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:42,425 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-11-25 23:47:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 23:47:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:42,426 INFO L225 Difference]: With dead ends: 80 [2022-11-25 23:47:42,427 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 23:47:42,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:42,428 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 13 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:42,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 23:47:42,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 23:47:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 77 states have internal predecessors, (83), 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) [2022-11-25 23:47:42,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2022-11-25 23:47:42,434 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 18 [2022-11-25 23:47:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:42,434 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2022-11-25 23:47:42,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-25 23:47:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2022-11-25 23:47:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 23:47:42,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:42,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:42,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:47:42,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash -177621935, now seen corresponding path program 1 times [2022-11-25 23:47:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:42,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475653008] [2022-11-25 23:47:42,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:42,518 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:42,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:42,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475653008] [2022-11-25 23:47:42,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475653008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:42,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183371599] [2022-11-25 23:47:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:42,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:42,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:42,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:42,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:42,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:42,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:42,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:42,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183371599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:42,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:47:42,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-25 23:47:42,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328004245] [2022-11-25 23:47:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:42,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:42,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:47:42,710 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-25 23:47:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:42,888 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2022-11-25 23:47:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:47:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-25 23:47:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:42,889 INFO L225 Difference]: With dead ends: 78 [2022-11-25 23:47:42,889 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 23:47:42,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:42,891 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 44 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:42,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 48 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 23:47:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 23:47:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 68 states have internal predecessors, (74), 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) [2022-11-25 23:47:42,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-11-25 23:47:42,897 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 24 [2022-11-25 23:47:42,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:42,897 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-11-25 23:47:42,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-25 23:47:42,898 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-11-25 23:47:42,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:47:42,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:42,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:42,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:43,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 23:47:43,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:43,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:43,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1211312623, now seen corresponding path program 1 times [2022-11-25 23:47:43,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:43,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111317402] [2022-11-25 23:47:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:43,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:43,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111317402] [2022-11-25 23:47:43,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111317402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:43,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002740434] [2022-11-25 23:47:43,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:43,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:43,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:43,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:43,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:43,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:43,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:43,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:43,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:43,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002740434] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:43,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1787461192] [2022-11-25 23:47:43,462 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-25 23:47:43,462 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:43,466 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:43,471 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:43,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,590 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:43,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:47:43,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-25 23:47:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:47:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:47:44,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 115 [2022-11-25 23:47:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:44,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:44,677 INFO L321 Elim1Store]: treesize reduction 114, result has 16.8 percent of original size [2022-11-25 23:47:44,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 604 treesize of output 598 [2022-11-25 23:47:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:45,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:45,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:45,380 INFO L321 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2022-11-25 23:47:45,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 509 treesize of output 500 [2022-11-25 23:47:45,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:47:45,548 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 29 treesize of output 28 [2022-11-25 23:47:45,581 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 16 treesize of output 12 [2022-11-25 23:47:45,899 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:48,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1787461192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:48,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:48,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-11-25 23:47:48,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678471941] [2022-11-25 23:47:48,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:48,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:47:48,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:48,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:47:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:47:48,916 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:52,664 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2022-11-25 23:47:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:47:52,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:47:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:52,666 INFO L225 Difference]: With dead ends: 139 [2022-11-25 23:47:52,667 INFO L226 Difference]: Without dead ends: 97 [2022-11-25 23:47:52,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 12 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:47:52,668 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 130 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:52,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 35 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:47:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-25 23:47:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-11-25 23:47:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 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) [2022-11-25 23:47:52,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2022-11-25 23:47:52,686 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 25 [2022-11-25 23:47:52,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:52,687 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2022-11-25 23:47:52,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:52,687 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2022-11-25 23:47:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:47:52,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:52,688 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:52,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:52,895 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:47:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -347678629, now seen corresponding path program 1 times [2022-11-25 23:47:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:52,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221137053] [2022-11-25 23:47:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:52,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:52,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:52,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221137053] [2022-11-25 23:47:52,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221137053] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927031356] [2022-11-25 23:47:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:52,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:52,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:52,973 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:53,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:47:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:53,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:53,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:53,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:53,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:53,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927031356] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [469858824] [2022-11-25 23:47:53,184 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-25 23:47:53,185 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:53,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:53,185 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:53,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:53,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,239 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:47:53,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:47:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-25 23:47:53,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:47:53,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:47:53,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 115 [2022-11-25 23:47:53,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:53,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:53,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,917 INFO L321 Elim1Store]: treesize reduction 114, result has 16.8 percent of original size [2022-11-25 23:47:53,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 27 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 604 treesize of output 598 [2022-11-25 23:47:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:54,522 INFO L321 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2022-11-25 23:47:54,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 509 treesize of output 500 [2022-11-25 23:47:54,637 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 16 treesize of output 12 [2022-11-25 23:47:54,683 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 29 treesize of output 28 [2022-11-25 23:47:54,723 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 16 treesize of output 12 [2022-11-25 23:47:54,988 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:57,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [469858824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:57,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:57,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 19 [2022-11-25 23:47:57,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102455521] [2022-11-25 23:47:57,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:57,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:47:57,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:57,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:47:57,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:47:57,755 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:01,294 INFO L93 Difference]: Finished difference Result 155 states and 173 transitions. [2022-11-25 23:48:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:48:01,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:48:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:01,296 INFO L225 Difference]: With dead ends: 155 [2022-11-25 23:48:01,296 INFO L226 Difference]: Without dead ends: 113 [2022-11-25 23:48:01,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 12 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:48:01,298 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 215 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:01,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 37 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:48:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-25 23:48:01,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 98. [2022-11-25 23:48:01,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.2183908045977012) internal successors, (106), 97 states have internal predecessors, (106), 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) [2022-11-25 23:48:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-11-25 23:48:01,313 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 25 [2022-11-25 23:48:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:01,314 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-11-25 23:48:01,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2022-11-25 23:48:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:48:01,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:01,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:01,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:01,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:01,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash -418448869, now seen corresponding path program 1 times [2022-11-25 23:48:01,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919992508] [2022-11-25 23:48:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:01,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:01,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:01,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:01,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919992508] [2022-11-25 23:48:01,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919992508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:01,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:01,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:48:01,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329483671] [2022-11-25 23:48:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:01,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:48:01,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:01,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:48:01,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:01,567 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:01,591 INFO L93 Difference]: Finished difference Result 170 states and 183 transitions. [2022-11-25 23:48:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:48:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:48:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:01,595 INFO L225 Difference]: With dead ends: 170 [2022-11-25 23:48:01,595 INFO L226 Difference]: Without dead ends: 111 [2022-11-25 23:48:01,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:01,596 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:01,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:48:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-25 23:48:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102. [2022-11-25 23:48:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.1720430107526882) internal successors, (109), 101 states have internal predecessors, (109), 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) [2022-11-25 23:48:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2022-11-25 23:48:01,608 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 25 [2022-11-25 23:48:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:01,609 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2022-11-25 23:48:01,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2022-11-25 23:48:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:48:01,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:01,610 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:01,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:48:01,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:01,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash -418438939, now seen corresponding path program 1 times [2022-11-25 23:48:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:01,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97172311] [2022-11-25 23:48:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:01,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:01,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97172311] [2022-11-25 23:48:01,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97172311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:01,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505832714] [2022-11-25 23:48:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:01,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:01,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:01,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:01,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:48:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:01,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:48:01,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:01,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:01,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505832714] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:01,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1586983630] [2022-11-25 23:48:01,838 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-25 23:48:01,839 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:01,839 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:01,839 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:01,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:01,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,890 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:01,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:01,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-25 23:48:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:48:02,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:48:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 115 [2022-11-25 23:48:02,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:02,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:02,571 INFO L321 Elim1Store]: treesize reduction 114, result has 16.8 percent of original size [2022-11-25 23:48:02,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 27 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 604 treesize of output 598 [2022-11-25 23:48:03,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,651 INFO L321 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2022-11-25 23:48:03,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 974 treesize of output 879 [2022-11-25 23:48:03,801 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 16 treesize of output 12 [2022-11-25 23:48:03,850 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 29 treesize of output 28 [2022-11-25 23:48:03,877 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 16 treesize of output 12 [2022-11-25 23:48:04,071 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:06,533 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2541#(and (<= ~CELLCOUNT~0 2147483647) (= |ULTIMATE.start_main_~CCCELVOL1~0#1| 1) (<= 1 ~CELLCOUNT~0) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483647 (* 2 |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~CCCELVOL2~0#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1073741824) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#volArray~0#1.base|) (<= 3 |ULTIMATE.start_main_~MINVAL~0#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:06,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:06,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:06,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-25 23:48:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968088772] [2022-11-25 23:48:06,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:06,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:48:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:06,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:48:06,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:48:06,537 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:06,767 INFO L93 Difference]: Finished difference Result 190 states and 210 transitions. [2022-11-25 23:48:06,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:48:06,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 23:48:06,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:06,770 INFO L225 Difference]: With dead ends: 190 [2022-11-25 23:48:06,770 INFO L226 Difference]: Without dead ends: 183 [2022-11-25 23:48:06,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2022-11-25 23:48:06,775 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 97 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:06,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 70 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-25 23:48:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 123. [2022-11-25 23:48:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.1176470588235294) internal successors, (133), 122 states have internal predecessors, (133), 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) [2022-11-25 23:48:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-11-25 23:48:06,804 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 25 [2022-11-25 23:48:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:06,804 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-11-25 23:48:06,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-11-25 23:48:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 23:48:06,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:06,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:06,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:07,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:07,013 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:07,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:07,014 INFO L85 PathProgramCache]: Analyzing trace with hash -144288085, now seen corresponding path program 1 times [2022-11-25 23:48:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:07,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217153710] [2022-11-25 23:48:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:07,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:07,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217153710] [2022-11-25 23:48:07,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217153710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:07,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239755879] [2022-11-25 23:48:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:07,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:07,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:07,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:07,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:48:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:07,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:48:07,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:07,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:07,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:48:07,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239755879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:07,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:48:07,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:48:07,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718016960] [2022-11-25 23:48:07,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:07,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:07,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:07,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:48:07,249 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-11-25 23:48:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:07,379 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2022-11-25 23:48:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:48:07,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 23:48:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:07,381 INFO L225 Difference]: With dead ends: 137 [2022-11-25 23:48:07,381 INFO L226 Difference]: Without dead ends: 136 [2022-11-25 23:48:07,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:48:07,382 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:07,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 47 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-25 23:48:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 122. [2022-11-25 23:48:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 119 states have (on average 1.1092436974789917) internal successors, (132), 121 states have internal predecessors, (132), 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) [2022-11-25 23:48:07,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2022-11-25 23:48:07,398 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 28 [2022-11-25 23:48:07,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:07,399 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2022-11-25 23:48:07,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-11-25 23:48:07,399 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2022-11-25 23:48:07,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 23:48:07,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:07,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:07,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:07,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 23:48:07,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:07,608 INFO L85 PathProgramCache]: Analyzing trace with hash -177963197, now seen corresponding path program 1 times [2022-11-25 23:48:07,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:07,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660868965] [2022-11-25 23:48:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:07,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:07,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660868965] [2022-11-25 23:48:07,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660868965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:07,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512487044] [2022-11-25 23:48:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:07,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:07,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:07,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:07,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:48:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:07,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:48:07,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:07,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:07,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512487044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:07,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1698308418] [2022-11-25 23:48:07,880 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 23:48:07,881 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:07,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:07,881 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:07,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,950 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:07,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:07,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-25 23:48:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:48:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:48:08,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 123 [2022-11-25 23:48:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,488 INFO L321 Elim1Store]: treesize reduction 113, result has 5.8 percent of original size [2022-11-25 23:48:08,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 41 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 614 treesize of output 602 [2022-11-25 23:48:08,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:08,896 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-11-25 23:48:08,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 490 treesize of output 481 [2022-11-25 23:48:08,993 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 16 treesize of output 12 [2022-11-25 23:48:09,029 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 29 treesize of output 28 [2022-11-25 23:48:09,061 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 16 treesize of output 12 [2022-11-25 23:48:09,798 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:13,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1698308418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:13,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:13,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 24 [2022-11-25 23:48:13,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485245299] [2022-11-25 23:48:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:13,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 23:48:13,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:13,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 23:48:13,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2022-11-25 23:48:13,511 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:17,808 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2022-11-25 23:48:17,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:48:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-25 23:48:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:17,810 INFO L225 Difference]: With dead ends: 137 [2022-11-25 23:48:17,810 INFO L226 Difference]: Without dead ends: 113 [2022-11-25 23:48:17,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:48:17,811 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 232 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:17,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 12 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:48:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-25 23:48:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2022-11-25 23:48:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 100 states have internal predecessors, (109), 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) [2022-11-25 23:48:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-11-25 23:48:17,822 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 29 [2022-11-25 23:48:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:17,822 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-11-25 23:48:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-11-25 23:48:17,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 23:48:17,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:17,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:17,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:18,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 23:48:18,029 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:18,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:18,029 INFO L85 PathProgramCache]: Analyzing trace with hash -64992115, now seen corresponding path program 1 times [2022-11-25 23:48:18,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:18,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963360180] [2022-11-25 23:48:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:18,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:18,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:18,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963360180] [2022-11-25 23:48:18,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963360180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:18,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266634699] [2022-11-25 23:48:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:18,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:18,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:18,118 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:18,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:48:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:18,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:48:18,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:18,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:18,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266634699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:18,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1600823440] [2022-11-25 23:48:18,274 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 23:48:18,274 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:18,275 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:18,275 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:18,275 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:18,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,334 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:18,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-25 23:48:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:48:18,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:48:18,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 115 [2022-11-25 23:48:18,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:18,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,903 INFO L321 Elim1Store]: treesize reduction 114, result has 16.8 percent of original size [2022-11-25 23:48:18,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 604 treesize of output 598 [2022-11-25 23:48:19,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:19,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:19,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,429 INFO L321 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2022-11-25 23:48:19,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 35 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 509 treesize of output 500 [2022-11-25 23:48:19,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-25 23:48:19,554 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 29 treesize of output 28 [2022-11-25 23:48:19,584 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 16 treesize of output 12 [2022-11-25 23:48:20,170 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:23,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1600823440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:23,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:23,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 24 [2022-11-25 23:48:23,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425756931] [2022-11-25 23:48:23,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 23:48:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 23:48:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2022-11-25 23:48:23,336 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:27,857 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2022-11-25 23:48:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:48:27,857 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-25 23:48:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:27,858 INFO L225 Difference]: With dead ends: 114 [2022-11-25 23:48:27,858 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 23:48:27,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:48:27,859 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 164 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:27,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 16 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:48:27,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 23:48:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-25 23:48:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 72 states have (on average 1.1111111111111112) internal successors, (80), 74 states have internal predecessors, (80), 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) [2022-11-25 23:48:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-11-25 23:48:27,868 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 29 [2022-11-25 23:48:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:27,868 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-11-25 23:48:27,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-11-25 23:48:27,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 23:48:27,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:27,869 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:27,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:28,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:28,075 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-25 23:48:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1350463923, now seen corresponding path program 1 times [2022-11-25 23:48:28,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:28,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235322640] [2022-11-25 23:48:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:28,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:28,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:28,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235322640] [2022-11-25 23:48:28,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235322640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:28,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553620751] [2022-11-25 23:48:28,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:28,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:28,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:28,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:28,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:48:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:28,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:48:28,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:28,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:28,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553620751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1929643855] [2022-11-25 23:48:28,413 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 23:48:28,413 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:28,414 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:28,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:28,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,468 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-25 23:48:28,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 42 [2022-11-25 23:48:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,513 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:28,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:28,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 93 [2022-11-25 23:48:28,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 20 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 108 [2022-11-25 23:48:28,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 115 [2022-11-25 23:48:28,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:28,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:28,960 INFO L321 Elim1Store]: treesize reduction 114, result has 16.8 percent of original size [2022-11-25 23:48:28,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 604 treesize of output 598 [2022-11-25 23:48:29,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:29,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,658 INFO L321 Elim1Store]: treesize reduction 92, result has 1.1 percent of original size [2022-11-25 23:48:29,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 974 treesize of output 879 [2022-11-25 23:48:29,797 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 16 treesize of output 12 [2022-11-25 23:48:29,835 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 29 treesize of output 28 [2022-11-25 23:48:29,860 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 16 treesize of output 12 [2022-11-25 23:48:30,380 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:33,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1929643855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:33,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:33,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5] total 23 [2022-11-25 23:48:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947227295] [2022-11-25 23:48:33,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:33,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:48:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:33,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:48:33,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2022-11-25 23:48:33,255 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:36,934 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2022-11-25 23:48:36,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:48:36,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-25 23:48:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:36,935 INFO L225 Difference]: With dead ends: 107 [2022-11-25 23:48:36,935 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:48:36,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 14 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=204, Invalid=788, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:48:36,937 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:36,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:48:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:48:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:48:36,938 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) [2022-11-25 23:48:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:48:36,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-25 23:48:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:36,939 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:48:36,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:48:36,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:48:36,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-11-25 23:48:36,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-11-25 23:48:36,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-11-25 23:48:36,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-11-25 23:48:36,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-11-25 23:48:36,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-11-25 23:48:36,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-11-25 23:48:36,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-11-25 23:48:36,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-11-25 23:48:36,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-11-25 23:48:36,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-11-25 23:48:36,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-11-25 23:48:36,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-11-25 23:48:36,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-11-25 23:48:36,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-11-25 23:48:36,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-11-25 23:48:36,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-11-25 23:48:36,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-11-25 23:48:36,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-11-25 23:48:36,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-11-25 23:48:36,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-11-25 23:48:36,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-11-25 23:48:36,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:37,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 23:48:37,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:48:38,954 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 46) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L27-4(lines 27 46) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L27-5(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,955 INFO L899 garLoopResultBuilder]: For program point L27-6(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L895 garLoopResultBuilder]: At program point L27-7(lines 27 46) the Hoare annotation is: (let ((.cse35 (select |#memory_int| 1)) (.cse34 (select |#memory_int| 2))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= (* (mod ~CELLCOUNT~0 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#volArray~0#1.base|))) (.cse2 (= (select |#valid| |ULTIMATE.start_main_~#volArray~0#1.base|) 1)) (.cse3 (= (select .cse34 5) 0)) (.cse4 (= 114 (select .cse34 1))) (.cse9 (and (= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (= (ite (= (let ((.cse36 (mod ~CELLCOUNT~0 2))) (ite (and (not (= .cse36 0)) (< ~CELLCOUNT~0 0)) (+ (- 2) .cse36) .cse36)) 0) 1 0) |ULTIMATE.start_assume_abort_if_not_#in~cond#1|))) (.cse7 (select (select |#memory_int| |ULTIMATE.start_main_~#volArray~0#1.base|) (+ |ULTIMATE.start_main_~#volArray~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8) (- 12)))) (.cse8 (<= 2 |ULTIMATE.start_main_~i~0#1|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse10 (<= ~CELLCOUNT~0 2147483647)) (.cse11 (= (select .cse34 2) 50)) (.cse12 (= |ULTIMATE.start_main_~CCCELVOL1~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0)) (.cse14 (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|)) (.cse15 (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 2) 2))) (.cse16 (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|)) (.cse17 (= (select |#valid| 1) 1)) (.cse18 (= |ULTIMATE.start_main_~CCCELVOL2~0#1| 3)) (.cse19 (= (select .cse34 4) 99)) (.cse20 (= 112 (select .cse34 0))) (.cse21 (<= |ULTIMATE.start_main_~i~0#1| 1073741824)) (.cse22 (= (select |#valid| 0) 0)) (.cse23 (= (select |#valid| 2) 1)) (.cse24 (= |#NULL.offset| 0)) (.cse25 (= (select .cse35 0) 48)) (.cse26 (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1)) (.cse27 (= (select .cse35 1) 0)) (.cse28 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#volArray~0#1.base|)) (.cse29 (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1)) (.cse30 (= 46 (select .cse34 3))) (.cse31 (= 6 (select |#length| 2))) (.cse32 (< 0 |#StackHeapBarrier|)) (.cse33 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~MINVAL~0#1| |ULTIMATE.start_main_~CCCELVOL1~0#1|) .cse5 .cse6 (or (and (= |ULTIMATE.start_main_~CCCELVOL1~0#1| .cse7) .cse8) .cse9) .cse10 .cse11 .cse12 .cse13 (< 1 ~CELLCOUNT~0) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 2 ~CELLCOUNT~0) (or .cse9 (and (= .cse7 0) .cse8)) .cse5 .cse6 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 (< |ULTIMATE.start_main_~CCCELVOL1~0#1| |ULTIMATE.start_main_~MINVAL~0#1|) .cse31 .cse32 .cse33)))) [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point L27-8(lines 27 46) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:48:38,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,957 INFO L902 garLoopResultBuilder]: At program point L53(lines 13 54) the Hoare annotation is: true [2022-11-25 23:48:38,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,957 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 36) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 28 46) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,958 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2022-11-25 23:48:38,959 INFO L899 garLoopResultBuilder]: For program point L48-4(line 48) no Hoare annotation was computed. [2022-11-25 23:48:38,960 INFO L895 garLoopResultBuilder]: At program point L48-5(lines 48 51) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select |#length| 3) 12) (= (* (mod ~CELLCOUNT~0 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#volArray~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#volArray~0#1.base|) 1) (= (select .cse0 5) 0) (= 114 (select .cse0 1)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= ~CELLCOUNT~0 2147483647) (= (select .cse0 2) 50) (= |ULTIMATE.start_main_~CCCELVOL1~0#1| 1) (= |ULTIMATE.start_main_~#volArray~0#1.offset| 0) (< 1 ~CELLCOUNT~0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= ~CELLCOUNT~0 (* (div ~CELLCOUNT~0 2) 2)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~CCCELVOL2~0#1| 3) (= (select .cse0 4) 99) (= 112 (select .cse0 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select .cse1 1) 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#volArray~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= 46 (select .cse0 3)) (= 6 (select |#length| 2)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 23:48:38,960 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,960 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,960 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point L40-2(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 52) no Hoare annotation was computed. [2022-11-25 23:48:38,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 16 52) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 23:48:38,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-25 23:48:38,963 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-25 23:48:38,963 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,963 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,963 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-25 23:48:38,966 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:38,969 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:48:38,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:48:38 BoogieIcfgContainer [2022-11-25 23:48:38,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:48:38,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:48:38,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:48:38,993 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:48:38,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:40" (3/4) ... [2022-11-25 23:48:38,997 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:48:39,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-25 23:48:39,007 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 23:48:39,007 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 23:48:39,007 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:48:39,007 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:48:39,032 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && MINVAL <= CCCELVOL1) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && ((CCCELVOL1 == unknown-#memory_int-unknown[volArray][volArray + i * 8 + -12] && 2 <= i) || (((i == 1 && \old(cond) == cond) && !(cond == 0)) && (if (if !(CELLCOUNT % 2 == 0) && CELLCOUNT < 0 then -2 + CELLCOUNT % 2 else CELLCOUNT % 2) == 0 then 1 else 0) == \old(cond)))) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 1 < CELLCOUNT) && 0 <= \old(cond)) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && i <= 1073741824) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && ((((i == 1 && \old(cond) == cond) && !(cond == 0)) && (if (if !(CELLCOUNT % 2 == 0) && CELLCOUNT < 0 then -2 + CELLCOUNT % 2 else CELLCOUNT % 2) == 0 then 1 else 0) == \old(cond)) || (unknown-#memory_int-unknown[volArray][volArray + i * 8 + -12] == 0 && 2 <= i))) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 0 <= \old(cond)) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && i <= 1073741824) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && CCCELVOL1 < MINVAL) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-25 23:48:39,032 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 1 < CELLCOUNT) && 0 <= \old(cond)) && 0 <= i) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-11-25 23:48:39,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:48:39,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:48:39,045 INFO L158 Benchmark]: Toolchain (without parser) took 60031.66ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 131.8MB in the beginning and 148.3MB in the end (delta: -16.4MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,045 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 123.7MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:48:39,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.48ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 120.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.41ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,046 INFO L158 Benchmark]: Boogie Preprocessor took 54.48ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 117.8MB in the end (delta: 721.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:48:39,047 INFO L158 Benchmark]: RCFGBuilder took 602.42ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 99.7MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,047 INFO L158 Benchmark]: TraceAbstraction took 58922.27ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 98.9MB in the beginning and 151.4MB in the end (delta: -52.5MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,047 INFO L158 Benchmark]: Witness Printer took 51.81ms. Allocated memory is still 287.3MB. Free memory was 151.4MB in the beginning and 148.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:48:39,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 123.7MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.48ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 120.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.41ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.48ms. Allocated memory is still 165.7MB. Free memory was 118.5MB in the beginning and 117.8MB in the end (delta: 721.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 602.42ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 99.7MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 58922.27ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 98.9MB in the beginning and 151.4MB in the end (delta: -52.5MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. * Witness Printer took 51.81ms. Allocated memory is still 287.3MB. Free memory was 151.4MB in the beginning and 148.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: 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: 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 58.8s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1367 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1367 mSDsluCounter, 710 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 327 mSDsCounter, 202 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1785 IncrementalHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 202 mSolverCounterUnsat, 383 mSDtfsCounter, 1785 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 630 GetRequests, 361 SyntacticMatches, 76 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2287 ImplicationChecksByTransitivity, 35.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=11, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 132 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 581 HoareAnnotationTreeSize, 3 FomulaSimplifications, 337 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3365 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 509 NumberOfCodeBlocks, 509 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 1495 SizeOfPredicates, 12 NumberOfNonLiveVariables, 882 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 29 InterpolantComputations, 9 PerfectInterpolantSequences, 46/134 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: 10.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 108, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 405, TOOLS_POST_TIME: 9.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 405, TOOLS_QUANTIFIERELIM_TIME: 9.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 572, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 12, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 21, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 108, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 7.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 7.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 21, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2503, DAG_COMPRESSION_RETAINED_NODES: 384, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 1 < CELLCOUNT) && 0 <= \old(cond)) && 0 <= i) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && MINVAL <= CCCELVOL1) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && ((CCCELVOL1 == unknown-#memory_int-unknown[volArray][volArray + i * 8 + -12] && 2 <= i) || (((i == 1 && \old(cond) == cond) && !(cond == 0)) && (if (if !(CELLCOUNT % 2 == 0) && CELLCOUNT < 0 then -2 + CELLCOUNT % 2 else CELLCOUNT % 2) == 0 then 1 else 0) == \old(cond)))) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 1 < CELLCOUNT) && 0 <= \old(cond)) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && i <= 1073741824) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && CELLCOUNT % 1073741824 * 4 == unknown-#length-unknown[volArray]) && \valid[volArray] == 1) && unknown-#memory_int-unknown[2][5] == 0) && 114 == unknown-#memory_int-unknown[2][1]) && 2 <= CELLCOUNT) && ((((i == 1 && \old(cond) == cond) && !(cond == 0)) && (if (if !(CELLCOUNT % 2 == 0) && CELLCOUNT < 0 then -2 + CELLCOUNT % 2 else CELLCOUNT % 2) == 0 then 1 else 0) == \old(cond)) || (unknown-#memory_int-unknown[volArray][volArray + i * 8 + -12] == 0 && 2 <= i))) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && CELLCOUNT <= 2147483647) && unknown-#memory_int-unknown[2][2] == 50) && CCCELVOL1 == 1) && volArray == 0) && 0 <= \old(cond)) && CELLCOUNT == CELLCOUNT / 2 * 2) && 0 <= cond) && \valid[1] == 1) && CCCELVOL2 == 3) && unknown-#memory_int-unknown[2][4] == 99) && 112 == unknown-#memory_int-unknown[2][0]) && i <= 1073741824) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && \old(cond) <= 1) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#StackHeapBarrier-unknown < volArray) && cond <= 1) && 46 == unknown-#memory_int-unknown[2][3]) && CCCELVOL1 < MINVAL) && 6 == unknown-#length-unknown[2]) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:48:39,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f63a95-b03b-4daf-94fc-5b57e6d9f85e/bin/utaipan-ByfvJB40ur/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