./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI --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 a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 --- 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-5e519f3 [2022-11-03 01:37:22,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:37:22,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:37:22,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:37:22,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:37:22,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:37:22,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:37:22,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:37:22,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:37:22,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:37:22,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:37:22,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:37:22,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:37:22,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:37:22,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:37:22,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:37:22,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:37:22,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:37:22,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:37:22,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:37:22,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:37:22,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:37:22,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:37:22,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:37:22,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:37:22,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:37:22,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:37:22,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:37:22,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:37:22,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:37:22,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:37:22,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:37:22,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:37:22,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:37:22,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:37:22,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:37:22,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:37:22,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:37:22,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:37:22,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:37:22,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:37:22,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 01:37:22,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:37:22,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:37:22,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:37:22,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:37:22,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:37:22,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:37:22,165 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:37:22,166 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:37:22,166 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:37:22,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:37:22,166 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:37:22,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:37:22,167 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:37:22,167 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:37:22,167 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:37:22,167 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:37:22,167 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:37:22,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:37:22,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:37:22,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:37:22,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:37:22,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:37:22,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 01:37:22,172 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:37:22,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:37:22,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:37:22,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:37:22,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:37:22,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:37:22,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:37:22,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:37:22,174 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:37:22,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:37:22,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:37:22,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:37:22,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:37:22,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:37:22,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:37:22,176 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_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 [2022-11-03 01:37:22,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:37:22,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:37:22,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:37:22,476 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:37:22,477 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:37:22,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2022-11-03 01:37:22,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/data/e3b9caf77/084a94f055114656befa3d984fa9f8f9/FLAGc8e27754c [2022-11-03 01:37:23,144 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:37:23,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2022-11-03 01:37:23,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/data/e3b9caf77/084a94f055114656befa3d984fa9f8f9/FLAGc8e27754c [2022-11-03 01:37:23,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/data/e3b9caf77/084a94f055114656befa3d984fa9f8f9 [2022-11-03 01:37:23,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:37:23,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:37:23,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:37:23,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:37:23,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:37:23,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:23" (1/1) ... [2022-11-03 01:37:23,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce1f168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:23, skipping insertion in model container [2022-11-03 01:37:23,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:23" (1/1) ... [2022-11-03 01:37:23,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:37:23,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:37:23,899 WARN L230 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_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2022-11-03 01:37:23,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:37:23,930 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:37:23,991 WARN L230 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_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2022-11-03 01:37:23,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:37:24,005 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:37:24,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24 WrapperNode [2022-11-03 01:37:24,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:37:24,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:37:24,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:37:24,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:37:24,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,092 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 527 [2022-11-03 01:37:24,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:37:24,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:37:24,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:37:24,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:37:24,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,153 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:37:24,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:37:24,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:37:24,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:37:24,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (1/1) ... [2022-11-03 01:37:24,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:37:24,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:24,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:37:24,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:37:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:37:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:37:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:37:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:37:24,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:37:24,362 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:37:24,391 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 01:37:25,026 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-11-03 01:37:25,042 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-11-03 01:37:25,042 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:37:25,266 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:37:25,267 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:37:25,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:25 BoogieIcfgContainer [2022-11-03 01:37:25,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:37:25,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:37:25,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:37:25,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:37:25,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:37:23" (1/3) ... [2022-11-03 01:37:25,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f663e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:25, skipping insertion in model container [2022-11-03 01:37:25,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:24" (2/3) ... [2022-11-03 01:37:25,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f663e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:25, skipping insertion in model container [2022-11-03 01:37:25,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:25" (3/3) ... [2022-11-03 01:37:25,282 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2022-11-03 01:37:25,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:37:25,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-03 01:37:25,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:37:25,400 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;@4d160f8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:37:25,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-03 01:37:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 110 states have (on average 1.8) internal successors, (198), 118 states have internal predecessors, (198), 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) [2022-11-03 01:37:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 01:37:25,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:25,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:25,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:25,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -796644391, now seen corresponding path program 1 times [2022-11-03 01:37:25,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:25,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248530044] [2022-11-03 01:37:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:25,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:37:25,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:25,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248530044] [2022-11-03 01:37:25,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248530044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:25,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:25,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:37:25,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982915437] [2022-11-03 01:37:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:25,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:37:25,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:37:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:37:25,754 INFO L87 Difference]: Start difference. First operand has 119 states, 110 states have (on average 1.8) internal successors, (198), 118 states have internal predecessors, (198), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:37:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:25,856 INFO L93 Difference]: Finished difference Result 222 states and 373 transitions. [2022-11-03 01:37:25,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:37:25,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 01:37:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:25,869 INFO L225 Difference]: With dead ends: 222 [2022-11-03 01:37:25,869 INFO L226 Difference]: Without dead ends: 100 [2022-11-03 01:37:25,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:37:25,876 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:25,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:37:25,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-03 01:37:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-03 01:37:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.5208333333333333) internal successors, (146), 99 states have internal predecessors, (146), 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) [2022-11-03 01:37:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 146 transitions. [2022-11-03 01:37:25,916 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 146 transitions. Word has length 10 [2022-11-03 01:37:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:25,917 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 146 transitions. [2022-11-03 01:37:25,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:37:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 146 transitions. [2022-11-03 01:37:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 01:37:25,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:25,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:25,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:37:25,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 370068279, now seen corresponding path program 1 times [2022-11-03 01:37:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6959023] [2022-11-03 01:37:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:25,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:25,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6959023] [2022-11-03 01:37:25,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:37:25,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964692472] [2022-11-03 01:37:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:25,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:26,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:37:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:26,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:26,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:37:26,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:26,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964692472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:26,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:26,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:37:26,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213850444] [2022-11-03 01:37:26,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:26,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:26,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:26,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:26,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:26,221 INFO L87 Difference]: Start difference. First operand 100 states and 146 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2022-11-03 01:37:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:26,351 INFO L93 Difference]: Finished difference Result 287 states and 425 transitions. [2022-11-03 01:37:26,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2022-11-03 01:37:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:26,354 INFO L225 Difference]: With dead ends: 287 [2022-11-03 01:37:26,354 INFO L226 Difference]: Without dead ends: 189 [2022-11-03 01:37:26,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:26,356 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 100 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:26,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 258 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:37:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-03 01:37:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2022-11-03 01:37:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 184 states have (on average 1.516304347826087) internal successors, (279), 187 states have internal predecessors, (279), 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) [2022-11-03 01:37:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 279 transitions. [2022-11-03 01:37:26,391 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 279 transitions. Word has length 35 [2022-11-03 01:37:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:26,391 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 279 transitions. [2022-11-03 01:37:26,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2022-11-03 01:37:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 279 transitions. [2022-11-03 01:37:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-03 01:37:26,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:26,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:26,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:26,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:26,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:26,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1186311030, now seen corresponding path program 1 times [2022-11-03 01:37:26,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:26,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120931969] [2022-11-03 01:37:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:26,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:26,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:26,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120931969] [2022-11-03 01:37:26,677 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:37:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591185286] [2022-11-03 01:37:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:26,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:26,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:26,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:26,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:37:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:26,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:26,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:37:26,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:26,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591185286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:26,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:26,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:26,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195450082] [2022-11-03 01:37:26,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:26,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:26,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:26,867 INFO L87 Difference]: Start difference. First operand 188 states and 279 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-11-03 01:37:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:27,078 INFO L93 Difference]: Finished difference Result 460 states and 704 transitions. [2022-11-03 01:37:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:27,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2022-11-03 01:37:27,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:27,085 INFO L225 Difference]: With dead ends: 460 [2022-11-03 01:37:27,085 INFO L226 Difference]: Without dead ends: 250 [2022-11-03 01:37:27,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:27,092 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 25 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:27,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 139 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:37:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-03 01:37:27,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2022-11-03 01:37:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 242 states have (on average 1.475206611570248) internal successors, (357), 245 states have internal predecessors, (357), 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) [2022-11-03 01:37:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 357 transitions. [2022-11-03 01:37:27,124 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 357 transitions. Word has length 49 [2022-11-03 01:37:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:27,128 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 357 transitions. [2022-11-03 01:37:27,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-11-03 01:37:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 357 transitions. [2022-11-03 01:37:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 01:37:27,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:27,134 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:27,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:27,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:27,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:27,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash -93621843, now seen corresponding path program 1 times [2022-11-03 01:37:27,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:27,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987346435] [2022-11-03 01:37:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:27,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:27,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987346435] [2022-11-03 01:37:27,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:37:27,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470367594] [2022-11-03 01:37:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:27,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:27,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:27,401 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:27,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:37:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:27,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:37:27,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 01:37:27,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:27,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470367594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:27,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:27,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:37:27,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244935673] [2022-11-03 01:37:27,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:27,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:37:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:37:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:37:27,647 INFO L87 Difference]: Start difference. First operand 246 states and 357 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-03 01:37:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:27,880 INFO L93 Difference]: Finished difference Result 578 states and 860 transitions. [2022-11-03 01:37:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:37:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 66 [2022-11-03 01:37:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:27,883 INFO L225 Difference]: With dead ends: 578 [2022-11-03 01:37:27,883 INFO L226 Difference]: Without dead ends: 334 [2022-11-03 01:37:27,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:37:27,887 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:27,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 192 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:37:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-03 01:37:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 322. [2022-11-03 01:37:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 318 states have (on average 1.3867924528301887) internal successors, (441), 321 states have internal predecessors, (441), 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) [2022-11-03 01:37:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 441 transitions. [2022-11-03 01:37:27,910 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 441 transitions. Word has length 66 [2022-11-03 01:37:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:27,910 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 441 transitions. [2022-11-03 01:37:27,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-11-03 01:37:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 441 transitions. [2022-11-03 01:37:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 01:37:27,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:27,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:27,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:28,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:28,126 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:28,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1629045620, now seen corresponding path program 1 times [2022-11-03 01:37:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:28,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637927880] [2022-11-03 01:37:28,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:28,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:28,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637927880] [2022-11-03 01:37:28,165 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:37:28,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751673301] [2022-11-03 01:37:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:28,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:28,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:28,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:28,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:37:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:28,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:28,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:37:28,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:28,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751673301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:28,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:28,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670129862] [2022-11-03 01:37:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:28,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:28,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:28,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:28,335 INFO L87 Difference]: Start difference. First operand 322 states and 441 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-11-03 01:37:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:28,534 INFO L93 Difference]: Finished difference Result 753 states and 1063 transitions. [2022-11-03 01:37:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-03 01:37:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:28,536 INFO L225 Difference]: With dead ends: 753 [2022-11-03 01:37:28,537 INFO L226 Difference]: Without dead ends: 423 [2022-11-03 01:37:28,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:28,538 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 69 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:28,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 136 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:37:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-03 01:37:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 399. [2022-11-03 01:37:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 395 states have (on average 1.3848101265822785) internal successors, (547), 398 states have internal predecessors, (547), 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) [2022-11-03 01:37:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 547 transitions. [2022-11-03 01:37:28,555 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 547 transitions. Word has length 76 [2022-11-03 01:37:28,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:28,555 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 547 transitions. [2022-11-03 01:37:28,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-11-03 01:37:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 547 transitions. [2022-11-03 01:37:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 01:37:28,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:28,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:28,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:28,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:28,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash -230604926, now seen corresponding path program 1 times [2022-11-03 01:37:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:28,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551327764] [2022-11-03 01:37:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:28,816 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:37:28,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044060428] [2022-11-03 01:37:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:28,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:28,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:37:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:28,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:28,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 01:37:28,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:28,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:28,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551327764] [2022-11-03 01:37:28,993 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:37:28,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044060428] [2022-11-03 01:37:28,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044060428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:28,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:28,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:28,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951904899] [2022-11-03 01:37:28,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:28,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:28,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:28,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:28,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:28,998 INFO L87 Difference]: Start difference. First operand 399 states and 547 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2022-11-03 01:37:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:29,193 INFO L93 Difference]: Finished difference Result 898 states and 1254 transitions. [2022-11-03 01:37:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:29,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) Word has length 85 [2022-11-03 01:37:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:29,196 INFO L225 Difference]: With dead ends: 898 [2022-11-03 01:37:29,196 INFO L226 Difference]: Without dead ends: 465 [2022-11-03 01:37:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:29,197 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 43 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:29,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 148 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:37:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-03 01:37:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 445. [2022-11-03 01:37:29,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 441 states have (on average 1.3764172335600906) internal successors, (607), 444 states have internal predecessors, (607), 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) [2022-11-03 01:37:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 607 transitions. [2022-11-03 01:37:29,213 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 607 transitions. Word has length 85 [2022-11-03 01:37:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:29,213 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 607 transitions. [2022-11-03 01:37:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2022-11-03 01:37:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 607 transitions. [2022-11-03 01:37:29,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 01:37:29,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:29,216 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:29,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:29,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 01:37:29,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1836257969, now seen corresponding path program 1 times [2022-11-03 01:37:29,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:29,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532497391] [2022-11-03 01:37:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:29,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:29,464 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:37:29,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057343934] [2022-11-03 01:37:29,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:29,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:29,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:29,466 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:29,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 01:37:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:29,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:29,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 01:37:29,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:29,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:29,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532497391] [2022-11-03 01:37:29,660 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:37:29,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057343934] [2022-11-03 01:37:29,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057343934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:29,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:29,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595494328] [2022-11-03 01:37:29,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:29,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:29,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:29,664 INFO L87 Difference]: Start difference. First operand 445 states and 607 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2022-11-03 01:37:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:29,837 INFO L93 Difference]: Finished difference Result 970 states and 1342 transitions. [2022-11-03 01:37:29,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:29,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) Word has length 104 [2022-11-03 01:37:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:29,841 INFO L225 Difference]: With dead ends: 970 [2022-11-03 01:37:29,841 INFO L226 Difference]: Without dead ends: 527 [2022-11-03 01:37:29,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:29,843 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 13 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:29,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 189 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:37:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-11-03 01:37:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 523. [2022-11-03 01:37:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 519 states have (on average 1.3314065510597302) internal successors, (691), 522 states have internal predecessors, (691), 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) [2022-11-03 01:37:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 691 transitions. [2022-11-03 01:37:29,860 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 691 transitions. Word has length 104 [2022-11-03 01:37:29,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:29,862 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 691 transitions. [2022-11-03 01:37:29,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2022-11-03 01:37:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 691 transitions. [2022-11-03 01:37:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 01:37:29,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:29,870 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:29,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:30,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:30,087 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:30,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:30,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1756319792, now seen corresponding path program 1 times [2022-11-03 01:37:30,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:30,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562490683] [2022-11-03 01:37:30,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:30,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:30,125 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:37:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236436827] [2022-11-03 01:37:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:30,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:30,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:30,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:30,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 01:37:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:30,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:30,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-03 01:37:30,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:30,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:30,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562490683] [2022-11-03 01:37:30,282 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:37:30,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236436827] [2022-11-03 01:37:30,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236436827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:30,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:30,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:30,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285528059] [2022-11-03 01:37:30,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:30,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:30,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:30,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:30,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:30,285 INFO L87 Difference]: Start difference. First operand 523 states and 691 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-11-03 01:37:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:30,484 INFO L93 Difference]: Finished difference Result 1140 states and 1534 transitions. [2022-11-03 01:37:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 109 [2022-11-03 01:37:30,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:30,488 INFO L225 Difference]: With dead ends: 1140 [2022-11-03 01:37:30,488 INFO L226 Difference]: Without dead ends: 587 [2022-11-03 01:37:30,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:30,489 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 51 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:30,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 135 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:37:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-03 01:37:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2022-11-03 01:37:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 569 states have (on average 1.3339191564147628) internal successors, (759), 572 states have internal predecessors, (759), 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) [2022-11-03 01:37:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 759 transitions. [2022-11-03 01:37:30,508 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 759 transitions. Word has length 109 [2022-11-03 01:37:30,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:30,508 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 759 transitions. [2022-11-03 01:37:30,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-11-03 01:37:30,509 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 759 transitions. [2022-11-03 01:37:30,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-03 01:37:30,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:30,511 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:30,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:30,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:30,738 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash -867343103, now seen corresponding path program 1 times [2022-11-03 01:37:30,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:30,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101751160] [2022-11-03 01:37:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:30,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:30,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:30,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101751160] [2022-11-03 01:37:30,814 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:37:30,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809424121] [2022-11-03 01:37:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:30,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:30,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:30,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:30,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 01:37:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:30,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:37:30,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-03 01:37:30,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:37:30,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809424121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:30,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:30,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353777441] [2022-11-03 01:37:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:30,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:30,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:30,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:30,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:30,969 INFO L87 Difference]: Start difference. First operand 573 states and 759 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2022-11-03 01:37:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:31,132 INFO L93 Difference]: Finished difference Result 1230 states and 1650 transitions. [2022-11-03 01:37:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:31,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) Word has length 131 [2022-11-03 01:37:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:31,135 INFO L225 Difference]: With dead ends: 1230 [2022-11-03 01:37:31,136 INFO L226 Difference]: Without dead ends: 631 [2022-11-03 01:37:31,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:31,137 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 52 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:31,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 127 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:37:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-11-03 01:37:31,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 627. [2022-11-03 01:37:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 623 states have (on average 1.3402889245585874) internal successors, (835), 626 states have internal predecessors, (835), 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) [2022-11-03 01:37:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 835 transitions. [2022-11-03 01:37:31,157 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 835 transitions. Word has length 131 [2022-11-03 01:37:31,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:31,158 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 835 transitions. [2022-11-03 01:37:31,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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) [2022-11-03 01:37:31,158 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 835 transitions. [2022-11-03 01:37:31,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 01:37:31,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:31,161 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:31,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 01:37:31,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:31,382 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:37:31,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2081996401, now seen corresponding path program 1 times [2022-11-03 01:37:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:31,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59948066] [2022-11-03 01:37:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:31,414 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:37:31,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683206289] [2022-11-03 01:37:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:31,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:37:31,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:31,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:37:31,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 01:37:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:31,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:37:31,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:37:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-03 01:37:31,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:37:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 164 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-03 01:37:31,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:31,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59948066] [2022-11-03 01:37:31,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:37:31,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683206289] [2022-11-03 01:37:31,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683206289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:37:31,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1488013649] [2022-11-03 01:37:31,785 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-11-03 01:37:31,786 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:37:31,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:37:31,794 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:37:31,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:38:14,280 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:38:47,539 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14859#(and (not (<= (ite (and (not (= (mod |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 0)) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 0)) (ite (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 0) (+ (- 1) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (+ (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 1)) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) 2147483647)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483648)) (= 8464 |ULTIMATE.start_main_~s~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640) (<= |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (= |#NULL.base| 0) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-11-03 01:38:47,539 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:38:47,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:38:47,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-03 01:38:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841414196] [2022-11-03 01:38:47,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:38:47,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:38:47,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:38:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=541, Invalid=2765, Unknown=0, NotChecked=0, Total=3306 [2022-11-03 01:38:47,543 INFO L87 Difference]: Start difference. First operand 627 states and 835 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2022-11-03 01:38:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:48,206 INFO L93 Difference]: Finished difference Result 2139 states and 2925 transitions. [2022-11-03 01:38:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:38:48,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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 162 [2022-11-03 01:38:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:48,212 INFO L225 Difference]: With dead ends: 2139 [2022-11-03 01:38:48,213 INFO L226 Difference]: Without dead ends: 1468 [2022-11-03 01:38:48,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 427 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=553, Invalid=2987, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 01:38:48,216 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 234 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:48,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 451 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 01:38:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-11-03 01:38:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1049. [2022-11-03 01:38:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1045 states have (on average 1.4162679425837321) internal successors, (1480), 1048 states have internal predecessors, (1480), 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) [2022-11-03 01:38:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1480 transitions. [2022-11-03 01:38:48,255 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1480 transitions. Word has length 162 [2022-11-03 01:38:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:48,255 INFO L495 AbstractCegarLoop]: Abstraction has 1049 states and 1480 transitions. [2022-11-03 01:38:48,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2022-11-03 01:38:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1480 transitions. [2022-11-03 01:38:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-03 01:38:48,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:48,259 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:48,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:38:48,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:38:48,474 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:38:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:48,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1517171671, now seen corresponding path program 1 times [2022-11-03 01:38:48,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:48,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236832858] [2022-11-03 01:38:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:48,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:48,495 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:38:48,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612918332] [2022-11-03 01:38:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:48,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:48,497 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:48,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 01:38:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:48,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 01:38:48,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 125 proven. 131 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 01:38:49,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:38:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-03 01:38:49,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:49,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236832858] [2022-11-03 01:38:49,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:38:49,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612918332] [2022-11-03 01:38:49,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612918332] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 01:38:49,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:38:49,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-11-03 01:38:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986746546] [2022-11-03 01:38:49,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:38:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:49,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:38:49,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:38:49,389 INFO L87 Difference]: Start difference. First operand 1049 states and 1480 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-11-03 01:38:49,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:49,809 INFO L93 Difference]: Finished difference Result 1290 states and 1828 transitions. [2022-11-03 01:38:49,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:38:49,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 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 170 [2022-11-03 01:38:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:49,815 INFO L225 Difference]: With dead ends: 1290 [2022-11-03 01:38:49,815 INFO L226 Difference]: Without dead ends: 1289 [2022-11-03 01:38:49,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:38:49,816 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 152 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:49,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 142 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:38:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-11-03 01:38:49,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1089. [2022-11-03 01:38:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1085 states have (on average 1.4276497695852535) internal successors, (1549), 1088 states have internal predecessors, (1549), 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) [2022-11-03 01:38:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1549 transitions. [2022-11-03 01:38:49,865 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1549 transitions. Word has length 170 [2022-11-03 01:38:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:49,865 INFO L495 AbstractCegarLoop]: Abstraction has 1089 states and 1549 transitions. [2022-11-03 01:38:49,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-11-03 01:38:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1549 transitions. [2022-11-03 01:38:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-03 01:38:49,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:49,869 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:49,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:38:50,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 01:38:50,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:38:50,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash -212317944, now seen corresponding path program 1 times [2022-11-03 01:38:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:50,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077955960] [2022-11-03 01:38:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:50,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:50,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:38:50,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207791535] [2022-11-03 01:38:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:50,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:50,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:50,106 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:50,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 01:38:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:50,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:38:50,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:50,575 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 125 proven. 131 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 01:38:50,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:38:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-03 01:38:50,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077955960] [2022-11-03 01:38:50,822 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:38:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207791535] [2022-11-03 01:38:50,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207791535] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 01:38:50,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:38:50,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-03 01:38:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934123788] [2022-11-03 01:38:50,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:50,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:38:50,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:50,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:38:50,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:50,825 INFO L87 Difference]: Start difference. First operand 1089 states and 1549 transitions. Second operand has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-11-03 01:38:51,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:51,284 INFO L93 Difference]: Finished difference Result 1291 states and 1829 transitions. [2022-11-03 01:38:51,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:38:51,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 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 171 [2022-11-03 01:38:51,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:51,290 INFO L225 Difference]: With dead ends: 1291 [2022-11-03 01:38:51,290 INFO L226 Difference]: Without dead ends: 1290 [2022-11-03 01:38:51,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:51,292 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 128 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:51,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 150 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:38:51,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2022-11-03 01:38:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1090. [2022-11-03 01:38:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1086 states have (on average 1.427255985267035) internal successors, (1550), 1089 states have internal predecessors, (1550), 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) [2022-11-03 01:38:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1550 transitions. [2022-11-03 01:38:51,341 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1550 transitions. Word has length 171 [2022-11-03 01:38:51,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:51,342 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 1550 transitions. [2022-11-03 01:38:51,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.333333333333332) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-11-03 01:38:51,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1550 transitions. [2022-11-03 01:38:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 01:38:51,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:51,346 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:51,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 01:38:51,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:51,562 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:38:51,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2008078841, now seen corresponding path program 1 times [2022-11-03 01:38:51,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:51,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137983689] [2022-11-03 01:38:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:51,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:51,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:38:51,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197059291] [2022-11-03 01:38:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:51,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:51,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:51,594 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:51,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 01:38:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:51,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 01:38:51,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 125 proven. 131 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 01:38:52,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:38:52,555 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-03 01:38:52,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137983689] [2022-11-03 01:38:52,556 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:38:52,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197059291] [2022-11-03 01:38:52,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197059291] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 01:38:52,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:38:52,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2022-11-03 01:38:52,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476030847] [2022-11-03 01:38:52,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:52,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:38:52,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:52,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:38:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:38:52,560 INFO L87 Difference]: Start difference. First operand 1090 states and 1550 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-11-03 01:38:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:53,271 INFO L93 Difference]: Finished difference Result 1307 states and 1853 transitions. [2022-11-03 01:38:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:38:53,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 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 172 [2022-11-03 01:38:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:53,276 INFO L225 Difference]: With dead ends: 1307 [2022-11-03 01:38:53,276 INFO L226 Difference]: Without dead ends: 1305 [2022-11-03 01:38:53,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-03 01:38:53,278 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 147 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:53,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 184 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:38:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-11-03 01:38:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1118. [2022-11-03 01:38:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1114 states have (on average 1.433572710951526) internal successors, (1597), 1117 states have internal predecessors, (1597), 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) [2022-11-03 01:38:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1597 transitions. [2022-11-03 01:38:53,341 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1597 transitions. Word has length 172 [2022-11-03 01:38:53,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:53,341 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 1597 transitions. [2022-11-03 01:38:53,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 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) [2022-11-03 01:38:53,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1597 transitions. [2022-11-03 01:38:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-03 01:38:53,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:53,345 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:53,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 01:38:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:53,558 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:38:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2120902442, now seen corresponding path program 1 times [2022-11-03 01:38:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:53,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678559501] [2022-11-03 01:38:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:53,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:38:53,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96054348] [2022-11-03 01:38:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:53,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:53,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:53,599 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:53,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 01:38:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:53,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:38:53,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-11-03 01:38:53,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:38:53,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678559501] [2022-11-03 01:38:53,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:38:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96054348] [2022-11-03 01:38:53,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96054348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:53,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:53,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:38:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230641976] [2022-11-03 01:38:53,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:53,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:38:53,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:53,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:38:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:53,777 INFO L87 Difference]: Start difference. First operand 1118 states and 1597 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2022-11-03 01:38:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:54,055 INFO L93 Difference]: Finished difference Result 2259 states and 3242 transitions. [2022-11-03 01:38:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:38:54,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) Word has length 173 [2022-11-03 01:38:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:54,061 INFO L225 Difference]: With dead ends: 2259 [2022-11-03 01:38:54,061 INFO L226 Difference]: Without dead ends: 1143 [2022-11-03 01:38:54,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:54,073 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:54,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 201 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:38:54,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2022-11-03 01:38:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1129. [2022-11-03 01:38:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 1126 states have (on average 1.380994671403197) internal successors, (1555), 1128 states have internal predecessors, (1555), 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) [2022-11-03 01:38:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1555 transitions. [2022-11-03 01:38:54,145 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1555 transitions. Word has length 173 [2022-11-03 01:38:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:54,146 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1555 transitions. [2022-11-03 01:38:54,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2022-11-03 01:38:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1555 transitions. [2022-11-03 01:38:54,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-03 01:38:54,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:54,150 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:54,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 01:38:54,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 01:38:54,374 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:38:54,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:54,375 INFO L85 PathProgramCache]: Analyzing trace with hash 57366085, now seen corresponding path program 1 times [2022-11-03 01:38:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:54,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581040382] [2022-11-03 01:38:54,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:54,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:54,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:38:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752056202] [2022-11-03 01:38:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:54,415 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:54,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 01:38:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:54,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:38:54,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 100 proven. 158 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 01:38:54,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:38:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 166 proven. 25 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-03 01:38:54,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:54,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581040382] [2022-11-03 01:38:54,919 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:38:54,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752056202] [2022-11-03 01:38:54,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752056202] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:38:54,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [767650457] [2022-11-03 01:38:54,922 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2022-11-03 01:38:54,923 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:38:54,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:38:54,924 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:38:54,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:39:16,729 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:39:56,559 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35478#(and (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= 8464 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (not (<= (+ (ite (and (not (= (mod |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 0)) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 0)) (ite (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 0) (+ (- 1) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (+ (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 1)) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) 2147483647)) (or (and (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~state~0#1| |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (= |#NULL.base| 0))) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= (ite (and (not (= (mod |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 0)) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 0)) (ite (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 0) (+ (- 1) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (+ (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 1)) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8641) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (<= |ULTIMATE.start_main_~s~0#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-11-03 01:39:56,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:39:56,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:39:56,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2022-11-03 01:39:56,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991967188] [2022-11-03 01:39:56,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:39:56,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:39:56,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:56,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:39:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=482, Invalid=3058, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 01:39:56,561 INFO L87 Difference]: Start difference. First operand 1129 states and 1555 transitions. Second operand has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 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) [2022-11-03 01:39:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:58,550 INFO L93 Difference]: Finished difference Result 4437 states and 6039 transitions. [2022-11-03 01:39:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 01:39:58,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 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 173 [2022-11-03 01:39:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:58,559 INFO L225 Difference]: With dead ends: 4437 [2022-11-03 01:39:58,560 INFO L226 Difference]: Without dead ends: 3310 [2022-11-03 01:39:58,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 456 SyntacticMatches, 13 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2379 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=572, Invalid=4398, Unknown=0, NotChecked=0, Total=4970 [2022-11-03 01:39:58,564 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 520 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:58,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1240 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 01:39:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2022-11-03 01:39:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2392. [2022-11-03 01:39:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2389 states have (on average 1.3767266638760989) internal successors, (3289), 2391 states have internal predecessors, (3289), 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) [2022-11-03 01:39:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3289 transitions. [2022-11-03 01:39:58,705 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3289 transitions. Word has length 173 [2022-11-03 01:39:58,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:58,705 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 3289 transitions. [2022-11-03 01:39:58,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.875) internal successors, (239), 8 states have internal predecessors, (239), 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) [2022-11-03 01:39:58,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3289 transitions. [2022-11-03 01:39:58,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-03 01:39:58,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:58,712 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:58,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 01:39:58,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:58,926 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:39:58,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash 669229858, now seen corresponding path program 1 times [2022-11-03 01:39:58,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:58,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992058048] [2022-11-03 01:39:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:58,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:58,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:39:58,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273786030] [2022-11-03 01:39:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:58,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:58,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:58,956 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:39:58,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 01:39:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:59,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:39:59,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:39:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-11-03 01:39:59,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:39:59,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:59,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992058048] [2022-11-03 01:39:59,118 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:39:59,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273786030] [2022-11-03 01:39:59,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273786030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:39:59,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:39:59,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:39:59,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108018835] [2022-11-03 01:39:59,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:39:59,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:39:59,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:39:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:39:59,120 INFO L87 Difference]: Start difference. First operand 2392 states and 3289 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2022-11-03 01:39:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:59,367 INFO L93 Difference]: Finished difference Result 5088 states and 7026 transitions. [2022-11-03 01:39:59,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:39:59,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 224 [2022-11-03 01:39:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:59,376 INFO L225 Difference]: With dead ends: 5088 [2022-11-03 01:39:59,376 INFO L226 Difference]: Without dead ends: 2698 [2022-11-03 01:39:59,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:39:59,380 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:59,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 191 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:39:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-03 01:39:59,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2680. [2022-11-03 01:39:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2677 states have (on average 1.346283152782966) internal successors, (3604), 2679 states have internal predecessors, (3604), 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) [2022-11-03 01:39:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3604 transitions. [2022-11-03 01:39:59,554 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3604 transitions. Word has length 224 [2022-11-03 01:39:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:59,555 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 3604 transitions. [2022-11-03 01:39:59,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2022-11-03 01:39:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3604 transitions. [2022-11-03 01:39:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-03 01:39:59,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:59,562 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:59,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 01:39:59,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 01:39:59,778 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:39:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1184006733, now seen corresponding path program 1 times [2022-11-03 01:39:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:59,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64144825] [2022-11-03 01:39:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:59,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:59,805 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:39:59,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260322053] [2022-11-03 01:39:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:59,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:59,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:59,811 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:39:59,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 01:39:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:59,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 01:39:59,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 288 proven. 201 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:40:00,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-03 01:40:00,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:40:00,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64144825] [2022-11-03 01:40:00,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:40:00,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260322053] [2022-11-03 01:40:00,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260322053] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 01:40:00,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:40:00,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-03 01:40:00,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580197211] [2022-11-03 01:40:00,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:00,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:40:00,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:40:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:40:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:00,564 INFO L87 Difference]: Start difference. First operand 2680 states and 3604 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2022-11-03 01:40:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:00,874 INFO L93 Difference]: Finished difference Result 5667 states and 7566 transitions. [2022-11-03 01:40:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:40:00,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 239 [2022-11-03 01:40:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:00,887 INFO L225 Difference]: With dead ends: 5667 [2022-11-03 01:40:00,887 INFO L226 Difference]: Without dead ends: 4359 [2022-11-03 01:40:00,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:00,890 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 353 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:00,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 885 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:40:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2022-11-03 01:40:01,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 4272. [2022-11-03 01:40:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4269 states have (on average 1.3382525181541345) internal successors, (5713), 4271 states have internal predecessors, (5713), 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) [2022-11-03 01:40:01,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 5713 transitions. [2022-11-03 01:40:01,137 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 5713 transitions. Word has length 239 [2022-11-03 01:40:01,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:01,137 INFO L495 AbstractCegarLoop]: Abstraction has 4272 states and 5713 transitions. [2022-11-03 01:40:01,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2022-11-03 01:40:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 5713 transitions. [2022-11-03 01:40:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-03 01:40:01,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:01,143 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:01,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:01,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 01:40:01,358 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:40:01,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:01,359 INFO L85 PathProgramCache]: Analyzing trace with hash 520771181, now seen corresponding path program 1 times [2022-11-03 01:40:01,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:40:01,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682734887] [2022-11-03 01:40:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:01,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:40:01,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:40:01,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895172477] [2022-11-03 01:40:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:01,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:40:01,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:40:01,389 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:40:01,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 01:40:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:01,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:01,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 306 proven. 166 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 01:40:01,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 357 proven. 115 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 01:40:02,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:40:02,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682734887] [2022-11-03 01:40:02,086 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:40:02,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895172477] [2022-11-03 01:40:02,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895172477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:02,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862662034] [2022-11-03 01:40:02,090 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-03 01:40:02,091 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:40:02,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:40:02,091 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:40:02,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:41:02,277 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:41:42,215 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67428#(and (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483647) (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (<= 8464 |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483647) (not (<= (+ (ite (and (not (= (mod |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 0)) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 0)) (ite (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 0) (+ (- 1) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (+ (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 1)) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) 2147483647)) (or (and (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~state~0#1| |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (= |#NULL.base| 0))) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__reuse_message~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_#in~initial_state#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~tmp___10~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__cert~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher~0#1| 2147483648)) (<= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__verify_mode~0#1|)) (<= |ULTIMATE.start_ssl3_accept_~tmp___9~0#1| 2147483647) (<= 0 |ULTIMATE.start_ssl3_accept_~got_new_session~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483648)) (<= (ite (and (not (= (mod |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 0)) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 0)) (ite (< |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 0) (+ (- 1) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (+ (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) 1)) (div |ULTIMATE.start_ssl3_accept_~s__state~0#1| |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__session__peer~0#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algo_strength~0#1|)) (<= 8464 |ULTIMATE.start_ssl3_accept_~initial_state#1|) (<= |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~Time~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__debug~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__options~0#1| 2147483648)) (<= |ULTIMATE.start_main_~s~0#1| 8464) (<= |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___8~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~s__cert__pkeys__AT0__privatekey~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_ssl3_accept_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_ssl3_accept_~ret~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~tmp___2~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__version~0#1| 2147483648)) (<= |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483647))' at error location [2022-11-03 01:41:42,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:41:42,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:41:42,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-11-03 01:41:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422232858] [2022-11-03 01:41:42,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:41:42,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:41:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:41:42,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=3310, Unknown=0, NotChecked=0, Total=3782 [2022-11-03 01:41:42,219 INFO L87 Difference]: Start difference. First operand 4272 states and 5713 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 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) [2022-11-03 01:41:43,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:43,333 INFO L93 Difference]: Finished difference Result 8812 states and 11800 transitions. [2022-11-03 01:41:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:41:43,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 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 243 [2022-11-03 01:41:43,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:43,345 INFO L225 Difference]: With dead ends: 8812 [2022-11-03 01:41:43,345 INFO L226 Difference]: Without dead ends: 3749 [2022-11-03 01:41:43,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 641 SyntacticMatches, 29 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2955 ImplicationChecksByTransitivity, 40.0s TimeCoverageRelationStatistics Valid=501, Invalid=3921, Unknown=0, NotChecked=0, Total=4422 [2022-11-03 01:41:43,352 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 230 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:43,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 686 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 01:41:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2022-11-03 01:41:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3319. [2022-11-03 01:41:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 3316 states have (on average 1.3359469240048252) internal successors, (4430), 3318 states have internal predecessors, (4430), 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) [2022-11-03 01:41:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4430 transitions. [2022-11-03 01:41:43,535 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4430 transitions. Word has length 243 [2022-11-03 01:41:43,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:43,536 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4430 transitions. [2022-11-03 01:41:43,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 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) [2022-11-03 01:41:43,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4430 transitions. [2022-11-03 01:41:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-03 01:41:43,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:43,541 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:43,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 01:41:43,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 01:41:43,754 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:41:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1027285213, now seen corresponding path program 1 times [2022-11-03 01:41:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:43,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685373658] [2022-11-03 01:41:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:43,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:41:43,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471895701] [2022-11-03 01:41:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:43,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:43,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:43,780 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:41:43,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 01:41:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:43,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 01:41:43,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:41:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-11-03 01:41:44,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:41:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2022-11-03 01:41:44,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685373658] [2022-11-03 01:41:44,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:41:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471895701] [2022-11-03 01:41:44,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471895701] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 01:41:44,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:41:44,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-03 01:41:44,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483088944] [2022-11-03 01:41:44,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:44,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:44,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:44,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:44,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:41:44,499 INFO L87 Difference]: Start difference. First operand 3319 states and 4430 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2022-11-03 01:41:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:44,774 INFO L93 Difference]: Finished difference Result 5807 states and 7743 transitions. [2022-11-03 01:41:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:44,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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 254 [2022-11-03 01:41:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:44,790 INFO L225 Difference]: With dead ends: 5807 [2022-11-03 01:41:44,790 INFO L226 Difference]: Without dead ends: 4754 [2022-11-03 01:41:44,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:41:44,792 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 63 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:44,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 256 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:41:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2022-11-03 01:41:45,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4542. [2022-11-03 01:41:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 4539 states have (on average 1.3364177131526769) internal successors, (6066), 4541 states have internal predecessors, (6066), 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) [2022-11-03 01:41:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6066 transitions. [2022-11-03 01:41:45,059 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6066 transitions. Word has length 254 [2022-11-03 01:41:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:45,060 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6066 transitions. [2022-11-03 01:41:45,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2022-11-03 01:41:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6066 transitions. [2022-11-03 01:41:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-03 01:41:45,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:45,066 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:45,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 01:41:45,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:45,282 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:41:45,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1586888626, now seen corresponding path program 1 times [2022-11-03 01:41:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666707404] [2022-11-03 01:41:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:45,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:45,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666707404] [2022-11-03 01:41:45,391 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:41:45,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236815406] [2022-11-03 01:41:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:45,403 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:41:45,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 01:41:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:45,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:41:45,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:41:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 486 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-11-03 01:41:45,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:41:45,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236815406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:45,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:45,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:41:45,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721926296] [2022-11-03 01:41:45,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:45,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:45,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:45,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:45,584 INFO L87 Difference]: Start difference. First operand 4542 states and 6066 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-03 01:41:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:45,900 INFO L93 Difference]: Finished difference Result 8665 states and 11550 transitions. [2022-11-03 01:41:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:45,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 273 [2022-11-03 01:41:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:45,916 INFO L225 Difference]: With dead ends: 8665 [2022-11-03 01:41:45,916 INFO L226 Difference]: Without dead ends: 4176 [2022-11-03 01:41:45,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:45,920 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 25 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:45,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 180 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:41:45,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-11-03 01:41:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 4046. [2022-11-03 01:41:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 4043 states have (on average 1.3321790749443483) internal successors, (5386), 4045 states have internal predecessors, (5386), 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) [2022-11-03 01:41:46,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 5386 transitions. [2022-11-03 01:41:46,141 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 5386 transitions. Word has length 273 [2022-11-03 01:41:46,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:46,141 INFO L495 AbstractCegarLoop]: Abstraction has 4046 states and 5386 transitions. [2022-11-03 01:41:46,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-03 01:41:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 5386 transitions. [2022-11-03 01:41:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-03 01:41:46,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:46,149 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:46,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 01:41:46,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:46,374 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:41:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash -975130369, now seen corresponding path program 1 times [2022-11-03 01:41:46,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:46,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027609020] [2022-11-03 01:41:46,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:46,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:46,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027609020] [2022-11-03 01:41:46,429 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 01:41:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721791990] [2022-11-03 01:41:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:46,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:46,431 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:41:46,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 01:41:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:46,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:41:46,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:41:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1837 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2022-11-03 01:41:46,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:41:46,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721791990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:41:46,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:41:46,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:41:46,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770019215] [2022-11-03 01:41:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:41:46,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:41:46,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:41:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:41:46,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:46,642 INFO L87 Difference]: Start difference. First operand 4046 states and 5386 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2022-11-03 01:41:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:41:47,010 INFO L93 Difference]: Finished difference Result 8030 states and 10631 transitions. [2022-11-03 01:41:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:41:47,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 385 [2022-11-03 01:41:47,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:41:47,024 INFO L225 Difference]: With dead ends: 8030 [2022-11-03 01:41:47,025 INFO L226 Difference]: Without dead ends: 3846 [2022-11-03 01:41:47,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:41:47,029 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 86 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:41:47,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 101 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:41:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2022-11-03 01:41:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3708. [2022-11-03 01:41:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3708 states, 3705 states have (on average 1.3222672064777328) internal successors, (4899), 3707 states have internal predecessors, (4899), 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) [2022-11-03 01:41:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 4899 transitions. [2022-11-03 01:41:47,246 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 4899 transitions. Word has length 385 [2022-11-03 01:41:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:41:47,247 INFO L495 AbstractCegarLoop]: Abstraction has 3708 states and 4899 transitions. [2022-11-03 01:41:47,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2022-11-03 01:41:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 4899 transitions. [2022-11-03 01:41:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-03 01:41:47,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:41:47,253 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:47,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 01:41:47,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-03 01:41:47,466 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-03 01:41:47,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:41:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2062364021, now seen corresponding path program 1 times [2022-11-03 01:41:47,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:41:47,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691456063] [2022-11-03 01:41:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:41:47,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 01:41:47,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276053294] [2022-11-03 01:41:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:41:47,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:41:47,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:41:47,501 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:41:47,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c5152a-f44b-40d9-9ea7-24bd47d68f5b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-03 01:41:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:41:47,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 01:41:47,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:41:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 1022 proven. 140 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-11-03 01:41:47,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:41:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 886 proven. 25 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-11-03 01:41:47,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:41:47,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691456063] [2022-11-03 01:41:47,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 01:41:47,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276053294] [2022-11-03 01:41:47,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276053294] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:41:47,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1287911578] [2022-11-03 01:41:47,997 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-03 01:41:47,997 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:41:47,998 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:41:47,998 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:41:47,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs