./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/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_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 22:23:13,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:23:13,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:23:13,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:23:13,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:23:13,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:23:13,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:23:13,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:23:13,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:23:13,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:23:13,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:23:13,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:23:13,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:23:13,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:23:13,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:23:13,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:23:13,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:23:13,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:23:13,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:23:13,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:23:13,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:23:13,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:23:13,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:23:13,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:23:13,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:23:13,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:23:13,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:23:13,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:23:13,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:23:13,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:23:13,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:23:13,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:23:13,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:23:13,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:23:13,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:23:13,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:23:13,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:23:13,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:23:13,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:23:13,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:23:13,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:23:13,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:23:13,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:23:13,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:23:13,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:23:13,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:23:13,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:23:13,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:23:13,223 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:23:13,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:23:13,224 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:23:13,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:23:13,225 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:23:13,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:23:13,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:23:13,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:23:13,226 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:23:13,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:23:13,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:23:13,227 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:23:13,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:23:13,228 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:23:13,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:23:13,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:23:13,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:23:13,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:23:13,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:23:13,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:23:13,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:23:13,230 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:23:13,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:23:13,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:23:13,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:23:13,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:23:13,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:23:13,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:23:13,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:23:13,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:23:13,232 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:23:13,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:23:13,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:23:13,233 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:23:13,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:23:13,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:23:13,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:23:13,234 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_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8373cb8fe582bc9cb45d9609c89b33bf31b030c114c7e7fdfee851d52974fb9 [2022-11-25 22:23:13,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:23:13,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:23:13,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:23:13,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:23:13,567 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:23:13,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2022-11-25 22:23:16,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:23:16,749 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:23:16,750 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c [2022-11-25 22:23:16,771 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/data/5c875587d/2423a6a1f228441db6a56ad3ee85e9f9/FLAGcfa7bc4d4 [2022-11-25 22:23:16,794 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/data/5c875587d/2423a6a1f228441db6a56ad3ee85e9f9 [2022-11-25 22:23:16,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:23:16,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:23:16,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:23:16,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:23:16,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:23:16,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:23:16" (1/1) ... [2022-11-25 22:23:16,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d918735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:16, skipping insertion in model container [2022-11-25 22:23:16,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:23:16" (1/1) ... [2022-11-25 22:23:16,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:23:16,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:23:17,147 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2022-11-25 22:23:17,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:23:17,176 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:23:17,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/sv-benchmarks/c/bitvector/s3_srvr_3a.BV.c.cil.c[44494,44507] [2022-11-25 22:23:17,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:23:17,310 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:23:17,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17 WrapperNode [2022-11-25 22:23:17,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:23:17,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:23:17,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:23:17,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:23:17,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,393 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 527 [2022-11-25 22:23:17,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:23:17,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:23:17,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:23:17,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:23:17,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:23:17,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:23:17,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:23:17,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:23:17,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (1/1) ... [2022-11-25 22:23:17,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:23:17,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:17,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:23:17,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:23:17,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:23:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:23:17,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:23:17,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:23:17,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:23:17,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:23:17,737 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 22:23:18,404 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-11-25 22:23:18,404 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-11-25 22:23:18,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:23:18,536 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:23:18,536 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:23:18,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:23:18 BoogieIcfgContainer [2022-11-25 22:23:18,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:23:18,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:23:18,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:23:18,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:23:18,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:23:16" (1/3) ... [2022-11-25 22:23:18,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a685562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:23:18, skipping insertion in model container [2022-11-25 22:23:18,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:23:17" (2/3) ... [2022-11-25 22:23:18,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a685562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:23:18, skipping insertion in model container [2022-11-25 22:23:18,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:23:18" (3/3) ... [2022-11-25 22:23:18,551 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2022-11-25 22:23:18,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:23:18,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 22:23:18,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:23:18,645 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;@257904d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:23:18,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 22:23:18,651 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) [2022-11-25 22:23:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:23:18,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:18,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:18,661 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)] === [2022-11-25 22:23:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash -796644391, now seen corresponding path program 1 times [2022-11-25 22:23:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:18,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135184483] [2022-11-25 22:23:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:18,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:19,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:19,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135184483] [2022-11-25 22:23:19,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135184483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:19,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:19,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:23:19,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341533538] [2022-11-25 22:23:19,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:19,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:19,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:19,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:19,086 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 3 states, 3 states have (on average 3.3333333333333335) 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) [2022-11-25 22:23:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:19,407 INFO L93 Difference]: Finished difference Result 257 states and 428 transitions. [2022-11-25 22:23:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:19,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 [2022-11-25 22:23:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:19,420 INFO L225 Difference]: With dead ends: 257 [2022-11-25 22:23:19,420 INFO L226 Difference]: Without dead ends: 134 [2022-11-25 22:23:19,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:19,427 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 27 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:19,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 260 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:19,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-25 22:23:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2022-11-25 22:23:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 124 states have (on average 1.5161290322580645) internal successors, (188), 131 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 188 transitions. [2022-11-25 22:23:19,508 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 188 transitions. Word has length 10 [2022-11-25 22:23:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:19,509 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 188 transitions. [2022-11-25 22:23:19,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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) [2022-11-25 22:23:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 188 transitions. [2022-11-25 22:23:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 22:23:19,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:19,512 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:19,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:23:19,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:19,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:19,513 INFO L85 PathProgramCache]: Analyzing trace with hash 761731770, now seen corresponding path program 1 times [2022-11-25 22:23:19,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:19,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273437467] [2022-11-25 22:23:19,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:19,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:19,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:19,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:19,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273437467] [2022-11-25 22:23:19,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273437467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:19,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:19,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942770139] [2022-11-25 22:23:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:19,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:19,605 INFO L87 Difference]: Start difference. First operand 132 states and 188 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:19,839 INFO L93 Difference]: Finished difference Result 313 states and 463 transitions. [2022-11-25 22:23:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:19,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-25 22:23:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:19,841 INFO L225 Difference]: With dead ends: 313 [2022-11-25 22:23:19,841 INFO L226 Difference]: Without dead ends: 171 [2022-11-25 22:23:19,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:19,843 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 67 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:19,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 166 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-25 22:23:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2022-11-25 22:23:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 160 states have (on average 1.48125) internal successors, (237), 167 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 237 transitions. [2022-11-25 22:23:19,854 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 237 transitions. Word has length 24 [2022-11-25 22:23:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:19,855 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 237 transitions. [2022-11-25 22:23:19,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:19,855 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 237 transitions. [2022-11-25 22:23:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 22:23:19,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:19,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:23:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:23:19,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1769537699, now seen corresponding path program 1 times [2022-11-25 22:23:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:19,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483252324] [2022-11-25 22:23:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:19,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:23:19,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:19,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483252324] [2022-11-25 22:23:19,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483252324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:19,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:19,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076906450] [2022-11-25 22:23:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:19,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:19,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:19,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:19,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:19,932 INFO L87 Difference]: Start difference. First operand 168 states and 237 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:20,163 INFO L93 Difference]: Finished difference Result 405 states and 591 transitions. [2022-11-25 22:23:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 22:23:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:20,166 INFO L225 Difference]: With dead ends: 405 [2022-11-25 22:23:20,166 INFO L226 Difference]: Without dead ends: 229 [2022-11-25 22:23:20,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:20,168 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 123 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:20,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 119 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-25 22:23:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-11-25 22:23:20,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 208 states have (on average 1.4615384615384615) internal successors, (304), 215 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 304 transitions. [2022-11-25 22:23:20,183 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 304 transitions. Word has length 27 [2022-11-25 22:23:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:20,184 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 304 transitions. [2022-11-25 22:23:20,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,184 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 304 transitions. [2022-11-25 22:23:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 22:23:20,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:20,186 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-25 22:23:20,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:23:20,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:20,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash 353442979, now seen corresponding path program 1 times [2022-11-25 22:23:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:20,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513970153] [2022-11-25 22:23:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:23:20,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:20,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513970153] [2022-11-25 22:23:20,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513970153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:20,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:20,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:20,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226353223] [2022-11-25 22:23:20,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:20,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:20,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:20,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:20,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:20,287 INFO L87 Difference]: Start difference. First operand 216 states and 304 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:20,491 INFO L93 Difference]: Finished difference Result 504 states and 732 transitions. [2022-11-25 22:23:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:20,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 41 [2022-11-25 22:23:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:20,494 INFO L225 Difference]: With dead ends: 504 [2022-11-25 22:23:20,494 INFO L226 Difference]: Without dead ends: 287 [2022-11-25 22:23:20,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:20,501 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 130 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:20,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 107 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-25 22:23:20,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2022-11-25 22:23:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 275 states have (on average 1.5054545454545454) internal successors, (414), 282 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 414 transitions. [2022-11-25 22:23:20,530 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 414 transitions. Word has length 41 [2022-11-25 22:23:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:20,531 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 414 transitions. [2022-11-25 22:23:20,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 414 transitions. [2022-11-25 22:23:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 22:23:20,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:20,540 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] [2022-11-25 22:23:20,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:23:20,541 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)] === [2022-11-25 22:23:20,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash -93621843, now seen corresponding path program 1 times [2022-11-25 22:23:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:20,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708619029] [2022-11-25 22:23:20,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:20,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:20,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:20,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708619029] [2022-11-25 22:23:20,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:23:20,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108129702] [2022-11-25 22:23:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:20,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:20,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:20,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:23:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:20,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:23:20,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:23:21,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:21,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108129702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:21,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:21,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:23:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340510232] [2022-11-25 22:23:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:21,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:23:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:21,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:23:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:23:21,014 INFO L87 Difference]: Start difference. First operand 283 states and 414 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) [2022-11-25 22:23:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:21,260 INFO L93 Difference]: Finished difference Result 608 states and 892 transitions. [2022-11-25 22:23:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:23:21,260 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 [2022-11-25 22:23:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:21,262 INFO L225 Difference]: With dead ends: 608 [2022-11-25 22:23:21,262 INFO L226 Difference]: Without dead ends: 327 [2022-11-25 22:23:21,263 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 [2022-11-25 22:23:21,264 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 20 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:21,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 216 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:21,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-25 22:23:21,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 320. [2022-11-25 22:23:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 312 states have (on average 1.4583333333333333) internal successors, (455), 319 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 455 transitions. [2022-11-25 22:23:21,283 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 455 transitions. Word has length 66 [2022-11-25 22:23:21,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:21,284 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 455 transitions. [2022-11-25 22:23:21,284 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) [2022-11-25 22:23:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 455 transitions. [2022-11-25 22:23:21,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 22:23:21,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:21,286 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 22:23:21,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:21,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:21,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:21,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 371039937, now seen corresponding path program 1 times [2022-11-25 22:23:21,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:21,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243354659] [2022-11-25 22:23:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:21,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-25 22:23:21,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243354659] [2022-11-25 22:23:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243354659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:21,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115556464] [2022-11-25 22:23:21,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:21,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:21,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:21,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:21,571 INFO L87 Difference]: Start difference. First operand 320 states and 455 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:21,785 INFO L93 Difference]: Finished difference Result 654 states and 935 transitions. [2022-11-25 22:23:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:21,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 79 [2022-11-25 22:23:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:21,788 INFO L225 Difference]: With dead ends: 654 [2022-11-25 22:23:21,788 INFO L226 Difference]: Without dead ends: 335 [2022-11-25 22:23:21,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:21,789 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 134 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:21,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 103 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-25 22:23:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2022-11-25 22:23:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 323 states have (on average 1.4643962848297214) internal successors, (473), 330 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 473 transitions. [2022-11-25 22:23:21,803 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 473 transitions. Word has length 79 [2022-11-25 22:23:21,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:21,803 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 473 transitions. [2022-11-25 22:23:21,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:21,804 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 473 transitions. [2022-11-25 22:23:21,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 22:23:21,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:21,806 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] [2022-11-25 22:23:21,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:23:21,806 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)] === [2022-11-25 22:23:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:21,807 INFO L85 PathProgramCache]: Analyzing trace with hash -230604926, now seen corresponding path program 1 times [2022-11-25 22:23:21,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:21,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295741313] [2022-11-25 22:23:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:21,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:21,826 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:23:21,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512743187] [2022-11-25 22:23:21,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:21,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:21,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:21,828 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:21,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:23:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:21,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:23:21,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-25 22:23:22,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:22,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:22,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295741313] [2022-11-25 22:23:22,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:23:22,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512743187] [2022-11-25 22:23:22,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512743187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:22,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171862785] [2022-11-25 22:23:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:22,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:22,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:22,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:22,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:22,024 INFO L87 Difference]: Start difference. First operand 331 states and 473 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) [2022-11-25 22:23:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:22,219 INFO L93 Difference]: Finished difference Result 709 states and 1020 transitions. [2022-11-25 22:23:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:22,219 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 [2022-11-25 22:23:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:22,223 INFO L225 Difference]: With dead ends: 709 [2022-11-25 22:23:22,223 INFO L226 Difference]: Without dead ends: 365 [2022-11-25 22:23:22,224 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 [2022-11-25 22:23:22,225 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 57 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:22,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 182 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:22,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-25 22:23:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 354. [2022-11-25 22:23:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 346 states have (on average 1.453757225433526) internal successors, (503), 353 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 503 transitions. [2022-11-25 22:23:22,240 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 503 transitions. Word has length 85 [2022-11-25 22:23:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:22,241 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 503 transitions. [2022-11-25 22:23:22,241 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) [2022-11-25 22:23:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 503 transitions. [2022-11-25 22:23:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 22:23:22,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:22,243 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] [2022-11-25 22:23:22,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:22,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 22:23:22,444 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)] === [2022-11-25 22:23:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1836257969, now seen corresponding path program 1 times [2022-11-25 22:23:22,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:22,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739703810] [2022-11-25 22:23:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:22,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:22,476 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:23:22,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4542845] [2022-11-25 22:23:22,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:22,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:22,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:22,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:22,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:23:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:22,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:23:22,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-25 22:23:22,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:22,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739703810] [2022-11-25 22:23:22,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:23:22,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4542845] [2022-11-25 22:23:22,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4542845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:22,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:22,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:22,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355536521] [2022-11-25 22:23:22,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:22,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:22,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:22,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:22,665 INFO L87 Difference]: Start difference. First operand 354 states and 503 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) [2022-11-25 22:23:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:22,845 INFO L93 Difference]: Finished difference Result 707 states and 1005 transitions. [2022-11-25 22:23:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:22,845 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 [2022-11-25 22:23:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:22,847 INFO L225 Difference]: With dead ends: 707 [2022-11-25 22:23:22,847 INFO L226 Difference]: Without dead ends: 355 [2022-11-25 22:23:22,848 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 [2022-11-25 22:23:22,851 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 25 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:22,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 223 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-25 22:23:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2022-11-25 22:23:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 346 states have (on average 1.3959537572254335) internal successors, (483), 353 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 483 transitions. [2022-11-25 22:23:22,866 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 483 transitions. Word has length 104 [2022-11-25 22:23:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:22,866 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 483 transitions. [2022-11-25 22:23:22,866 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) [2022-11-25 22:23:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 483 transitions. [2022-11-25 22:23:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 22:23:22,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:22,874 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] [2022-11-25 22:23:22,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:23,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:23,080 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)] === [2022-11-25 22:23:23,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:23,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1756319792, now seen corresponding path program 1 times [2022-11-25 22:23:23,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:23,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423284892] [2022-11-25 22:23:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:23,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:23,106 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:23:23,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644263964] [2022-11-25 22:23:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:23,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:23,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:23,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:23,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:23:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:23,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:23:23,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-25 22:23:23,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:23,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423284892] [2022-11-25 22:23:23,281 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:23:23,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644263964] [2022-11-25 22:23:23,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644263964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:23,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:23,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:23,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209331796] [2022-11-25 22:23:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:23,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:23,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:23,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:23,284 INFO L87 Difference]: Start difference. First operand 354 states and 483 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) [2022-11-25 22:23:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:23,477 INFO L93 Difference]: Finished difference Result 752 states and 1036 transitions. [2022-11-25 22:23:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:23,478 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 [2022-11-25 22:23:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:23,480 INFO L225 Difference]: With dead ends: 752 [2022-11-25 22:23:23,480 INFO L226 Difference]: Without dead ends: 387 [2022-11-25 22:23:23,481 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 [2022-11-25 22:23:23,481 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 67 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:23,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 167 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-25 22:23:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 379. [2022-11-25 22:23:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 371 states have (on average 1.3935309973045822) internal successors, (517), 378 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 517 transitions. [2022-11-25 22:23:23,496 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 517 transitions. Word has length 109 [2022-11-25 22:23:23,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:23,496 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 517 transitions. [2022-11-25 22:23:23,497 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) [2022-11-25 22:23:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 517 transitions. [2022-11-25 22:23:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 22:23:23,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:23,498 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-25 22:23:23,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:23,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:23,705 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:23,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:23,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1566158878, now seen corresponding path program 1 times [2022-11-25 22:23:23,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:23,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632806663] [2022-11-25 22:23:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:23,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:23,872 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:23,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:23,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632806663] [2022-11-25 22:23:23,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632806663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:23,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:23,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:23,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136342619] [2022-11-25 22:23:23,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:23,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:23,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:23,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:23,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:23,889 INFO L87 Difference]: Start difference. First operand 379 states and 517 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:24,077 INFO L93 Difference]: Finished difference Result 795 states and 1091 transitions. [2022-11-25 22:23:24,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:24,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 113 [2022-11-25 22:23:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:24,080 INFO L225 Difference]: With dead ends: 795 [2022-11-25 22:23:24,080 INFO L226 Difference]: Without dead ends: 418 [2022-11-25 22:23:24,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:24,082 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 133 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:24,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 109 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-11-25 22:23:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 391. [2022-11-25 22:23:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 383 states have (on average 1.3890339425587468) internal successors, (532), 390 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 532 transitions. [2022-11-25 22:23:24,130 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 532 transitions. Word has length 113 [2022-11-25 22:23:24,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:24,130 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 532 transitions. [2022-11-25 22:23:24,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,131 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 532 transitions. [2022-11-25 22:23:24,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 22:23:24,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:24,132 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2022-11-25 22:23:24,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:23:24,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1480517754, now seen corresponding path program 1 times [2022-11-25 22:23:24,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:24,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625191282] [2022-11-25 22:23:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:24,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:24,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:24,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625191282] [2022-11-25 22:23:24,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625191282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:24,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:24,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:24,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660313694] [2022-11-25 22:23:24,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:24,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:24,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:24,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:24,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:24,223 INFO L87 Difference]: Start difference. First operand 391 states and 532 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:24,406 INFO L93 Difference]: Finished difference Result 810 states and 1102 transitions. [2022-11-25 22:23:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:24,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 124 [2022-11-25 22:23:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:24,410 INFO L225 Difference]: With dead ends: 810 [2022-11-25 22:23:24,410 INFO L226 Difference]: Without dead ends: 421 [2022-11-25 22:23:24,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:24,411 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 32 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:24,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 229 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-25 22:23:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 410. [2022-11-25 22:23:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 402 states have (on average 1.3781094527363185) internal successors, (554), 409 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 554 transitions. [2022-11-25 22:23:24,427 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 554 transitions. Word has length 124 [2022-11-25 22:23:24,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:24,428 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 554 transitions. [2022-11-25 22:23:24,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 554 transitions. [2022-11-25 22:23:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 22:23:24,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:24,431 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] [2022-11-25 22:23:24,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:23:24,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash -867343103, now seen corresponding path program 1 times [2022-11-25 22:23:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:24,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156233967] [2022-11-25 22:23:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:24,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:24,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:24,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156233967] [2022-11-25 22:23:24,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 22:23:24,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598639927] [2022-11-25 22:23:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:24,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:24,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:24,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:24,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:23:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:24,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:23:24,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:24,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:23:24,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598639927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:23:24,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:23:24,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:23:24,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777192064] [2022-11-25 22:23:24,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:23:24,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:23:24,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:23:24,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:23:24,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:23:24,651 INFO L87 Difference]: Start difference. First operand 410 states and 554 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) [2022-11-25 22:23:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:24,845 INFO L93 Difference]: Finished difference Result 859 states and 1168 transitions. [2022-11-25 22:23:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:23:24,845 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 [2022-11-25 22:23:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:24,848 INFO L225 Difference]: With dead ends: 859 [2022-11-25 22:23:24,848 INFO L226 Difference]: Without dead ends: 440 [2022-11-25 22:23:24,849 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 [2022-11-25 22:23:24,849 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 64 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:24,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 171 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:23:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-25 22:23:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2022-11-25 22:23:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 429 states have (on average 1.3799533799533799) internal successors, (592), 436 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:23:24,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 592 transitions. [2022-11-25 22:23:24,878 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 592 transitions. Word has length 131 [2022-11-25 22:23:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:24,878 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 592 transitions. [2022-11-25 22:23:24,878 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) [2022-11-25 22:23:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 592 transitions. [2022-11-25 22:23:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-25 22:23:24,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:24,880 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1] [2022-11-25 22:23:24,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 22:23:25,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 22:23:25,086 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:23:25,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:25,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1551459489, now seen corresponding path program 1 times [2022-11-25 22:23:25,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:23:25,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667775077] [2022-11-25 22:23:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:25,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:23:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:25,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:23:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667775077] [2022-11-25 22:23:25,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667775077] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:23:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280336099] [2022-11-25 22:23:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:25,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:25,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:25,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:23:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:25,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:23:25,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:25,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:23:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:23:25,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280336099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:23:25,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700753278] [2022-11-25 22:23:25,477 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-25 22:23:25,478 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:23:25,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:23:25,487 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:23:25,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:24:10,833 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:24:41,112 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15483#(and (= |ULTIMATE.start_ssl3_accept_~s__new_session~0#1| 1) (<= 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) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___1~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~initial_state#1| 8464) (= 12292 |ULTIMATE.start_ssl3_accept_~s__state~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)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |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_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= 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|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 2147483647) (<= |ULTIMATE.start_ssl3_accept_~tmp___3~0#1| 2147483647) (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept_renegotiate~0#1|))) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~s__server~0#1| 1) (<= |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)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |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) (exists ((v_~bitwiseOr_4 Int)) (= (ite (or (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 1) (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 0)) 1 v_~bitwiseOr_4) 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_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= 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 [2022-11-25 22:24:41,112 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:24:41,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:24:41,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-25 22:24:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109876952] [2022-11-25 22:24:41,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:24:41,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:24:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:24:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2022-11-25 22:24:41,124 INFO L87 Difference]: Start difference. First operand 437 states and 592 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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) [2022-11-25 22:24:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:41,801 INFO L93 Difference]: Finished difference Result 1507 states and 2020 transitions. [2022-11-25 22:24:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:24:41,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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 137 [2022-11-25 22:24:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:41,806 INFO L225 Difference]: With dead ends: 1507 [2022-11-25 22:24:41,806 INFO L226 Difference]: Without dead ends: 1061 [2022-11-25 22:24:41,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 359 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1364 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=513, Invalid=2793, Unknown=0, NotChecked=0, Total=3306 [2022-11-25 22:24:41,809 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 631 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:41,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 346 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:24:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-25 22:24:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 600. [2022-11-25 22:24:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 594 states have (on average 1.4141414141414141) internal successors, (840), 599 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:24:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 840 transitions. [2022-11-25 22:24:41,838 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 840 transitions. Word has length 137 [2022-11-25 22:24:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:41,838 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 840 transitions. [2022-11-25 22:24:41,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 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) [2022-11-25 22:24:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 840 transitions. [2022-11-25 22:24:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-25 22:24:41,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:41,841 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1] [2022-11-25 22:24:41,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:42,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:42,048 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:24:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2055962146, now seen corresponding path program 1 times [2022-11-25 22:24:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:42,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725564610] [2022-11-25 22:24:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:42,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:24:42,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:42,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725564610] [2022-11-25 22:24:42,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725564610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:42,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336471822] [2022-11-25 22:24:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:42,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:42,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:42,170 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:42,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:24:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:42,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:24:42,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:24:42,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:24:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 22:24:42,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336471822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:24:42,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2051825283] [2022-11-25 22:24:42,418 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-11-25 22:24:42,418 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:24:42,420 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:24:42,420 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:24:42,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:23,074 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:53,405 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18844#(and (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 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) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (<= |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)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |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_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= 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|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |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__server~0#1| 1) (<= |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)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 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)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |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)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |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) (exists ((v_~bitwiseOr_4 Int)) (= (ite (or (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 1) (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 0)) 1 v_~bitwiseOr_4) 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_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= 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 [2022-11-25 22:25:53,406 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:53,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:25:53,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-25 22:25:53,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027984443] [2022-11-25 22:25:53,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:53,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:25:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:53,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:25:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=2490, Unknown=0, NotChecked=0, Total=2970 [2022-11-25 22:25:53,408 INFO L87 Difference]: Start difference. First operand 600 states and 840 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:54,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:54,286 INFO L93 Difference]: Finished difference Result 1953 states and 2650 transitions. [2022-11-25 22:25:54,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:25:54,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 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 140 [2022-11-25 22:25:54,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:54,291 INFO L225 Difference]: With dead ends: 1953 [2022-11-25 22:25:54,292 INFO L226 Difference]: Without dead ends: 1355 [2022-11-25 22:25:54,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 367 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1407 ImplicationChecksByTransitivity, 30.4s TimeCoverageRelationStatistics Valid=505, Invalid=2917, Unknown=0, NotChecked=0, Total=3422 [2022-11-25 22:25:54,294 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 667 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:54,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 560 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:25:54,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2022-11-25 22:25:54,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 774. [2022-11-25 22:25:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 768 states have (on average 1.3697916666666667) internal successors, (1052), 773 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1052 transitions. [2022-11-25 22:25:54,329 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1052 transitions. Word has length 140 [2022-11-25 22:25:54,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:54,329 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1052 transitions. [2022-11-25 22:25:54,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1052 transitions. [2022-11-25 22:25:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 22:25:54,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:54,332 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 22:25:54,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:54,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 22:25:54,539 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:25:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:54,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1306265540, now seen corresponding path program 1 times [2022-11-25 22:25:54,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:54,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001057970] [2022-11-25 22:25:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:54,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 102 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 22:25:54,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:54,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001057970] [2022-11-25 22:25:54,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001057970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:25:54,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126307250] [2022-11-25 22:25:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:54,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:54,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:54,745 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:54,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:25:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:54,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:25:54,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 85 proven. 85 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 22:25:55,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 97 proven. 6 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 22:25:55,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126307250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:55,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [249955143] [2022-11-25 22:25:55,228 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-25 22:25:55,228 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:55,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:55,229 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:55,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:26:14,168 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:26:54,956 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22968#(and (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 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) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (<= |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)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |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_~blastFlag~0#1|) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~s__ctx__info_callback~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~cb~0#1| 2147483648)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= 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|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |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__server~0#1| 1) (<= |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)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 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)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |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)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |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) (exists ((v_~bitwiseOr_4 Int)) (= (ite (or (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 1) (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 0)) 1 v_~bitwiseOr_4) 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_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= 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 [2022-11-25 22:26:54,956 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:26:54,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:26:54,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 4] total 11 [2022-11-25 22:26:54,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424609663] [2022-11-25 22:26:54,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:26:54,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 22:26:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 22:26:54,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=598, Invalid=3434, Unknown=0, NotChecked=0, Total=4032 [2022-11-25 22:26:54,959 INFO L87 Difference]: Start difference. First operand 774 states and 1052 transitions. Second operand has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 11 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) [2022-11-25 22:26:56,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:56,965 INFO L93 Difference]: Finished difference Result 3030 states and 4041 transitions. [2022-11-25 22:26:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 22:26:56,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 11 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 148 [2022-11-25 22:26:56,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:56,973 INFO L225 Difference]: With dead ends: 3030 [2022-11-25 22:26:56,973 INFO L226 Difference]: Without dead ends: 2258 [2022-11-25 22:26:56,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 388 SyntacticMatches, 11 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2908 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=780, Invalid=5540, Unknown=0, NotChecked=0, Total=6320 [2022-11-25 22:26:56,977 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 947 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:56,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 1310 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2120 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 22:26:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2022-11-25 22:26:57,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 1703. [2022-11-25 22:26:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1697 states have (on average 1.3176193282262816) internal successors, (2236), 1702 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2236 transitions. [2022-11-25 22:26:57,063 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2236 transitions. Word has length 148 [2022-11-25 22:26:57,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:57,063 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2236 transitions. [2022-11-25 22:26:57,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 11 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) [2022-11-25 22:26:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2236 transitions. [2022-11-25 22:26:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-25 22:26:57,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:57,066 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] [2022-11-25 22:26:57,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:26:57,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 22:26:57,273 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:26:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:57,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2008078841, now seen corresponding path program 1 times [2022-11-25 22:26:57,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:57,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160555405] [2022-11-25 22:26:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:57,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:57,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:26:57,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744222016] [2022-11-25 22:26:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:57,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:57,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:57,298 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:26:57,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:26:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:57,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:26:57,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-11-25 22:26:57,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:26:57,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:57,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160555405] [2022-11-25 22:26:57,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:26:57,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744222016] [2022-11-25 22:26:57,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744222016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:57,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:57,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:57,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736514526] [2022-11-25 22:26:57,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:57,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:26:57,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:57,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:26:57,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:57,504 INFO L87 Difference]: Start difference. First operand 1703 states and 2236 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:57,604 INFO L93 Difference]: Finished difference Result 1703 states and 2236 transitions. [2022-11-25 22:26:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:26:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 [2022-11-25 22:26:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:57,610 INFO L225 Difference]: With dead ends: 1703 [2022-11-25 22:26:57,610 INFO L226 Difference]: Without dead ends: 1702 [2022-11-25 22:26:57,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:57,612 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:57,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 277 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:26:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-11-25 22:26:57,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2022-11-25 22:26:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1697 states have (on average 1.314083677077195) internal successors, (2230), 1701 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2230 transitions. [2022-11-25 22:26:57,717 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2230 transitions. Word has length 172 [2022-11-25 22:26:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:57,717 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2230 transitions. [2022-11-25 22:26:57,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2230 transitions. [2022-11-25 22:26:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-25 22:26:57,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:57,719 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] [2022-11-25 22:26:57,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:26:57,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 22:26:57,928 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:26:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:57,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2120902442, now seen corresponding path program 1 times [2022-11-25 22:26:57,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:57,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568959552] [2022-11-25 22:26:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:57,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:57,970 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:26:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830289079] [2022-11-25 22:26:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:57,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:57,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:26:57,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 22:26:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:58,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:26:58,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 125 proven. 131 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 22:26:58,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:26:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-25 22:26:58,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:58,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568959552] [2022-11-25 22:26:58,906 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:26:58,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830289079] [2022-11-25 22:26:58,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830289079] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:26:58,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:26:58,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-11-25 22:26:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250940824] [2022-11-25 22:26:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:58,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:26:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:58,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:26:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:26:58,909 INFO L87 Difference]: Start difference. First operand 1702 states and 2230 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:59,464 INFO L93 Difference]: Finished difference Result 1943 states and 2510 transitions. [2022-11-25 22:26:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:26:59,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2022-11-25 22:26:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:59,471 INFO L225 Difference]: With dead ends: 1943 [2022-11-25 22:26:59,471 INFO L226 Difference]: Without dead ends: 1941 [2022-11-25 22:26:59,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:26:59,473 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 146 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:59,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 219 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:26:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2022-11-25 22:26:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1774. [2022-11-25 22:26:59,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1769 states have (on average 1.3069530808366308) internal successors, (2312), 1773 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2312 transitions. [2022-11-25 22:26:59,571 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2312 transitions. Word has length 173 [2022-11-25 22:26:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:59,571 INFO L495 AbstractCegarLoop]: Abstraction has 1774 states and 2312 transitions. [2022-11-25 22:26:59,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:26:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2312 transitions. [2022-11-25 22:26:59,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-25 22:26:59,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:59,573 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 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, 1, 1, 1] [2022-11-25 22:26:59,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:26:59,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:59,779 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:26:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 704282563, now seen corresponding path program 1 times [2022-11-25 22:26:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372647863] [2022-11-25 22:26:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-25 22:26:59,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:59,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372647863] [2022-11-25 22:26:59,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372647863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:59,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:59,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:59,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830595069] [2022-11-25 22:26:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:59,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:26:59,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:26:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:59,881 INFO L87 Difference]: Start difference. First operand 1774 states and 2312 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) [2022-11-25 22:27:00,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:00,105 INFO L93 Difference]: Finished difference Result 3546 states and 4622 transitions. [2022-11-25 22:27:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:00,105 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 182 [2022-11-25 22:27:00,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:00,111 INFO L225 Difference]: With dead ends: 3546 [2022-11-25 22:27:00,111 INFO L226 Difference]: Without dead ends: 1774 [2022-11-25 22:27:00,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:00,114 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 41 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:00,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 187 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:27:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2022-11-25 22:27:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1768. [2022-11-25 22:27:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1763 states have (on average 1.2943845717526943) internal successors, (2282), 1767 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:27:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2282 transitions. [2022-11-25 22:27:00,234 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2282 transitions. Word has length 182 [2022-11-25 22:27:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:00,234 INFO L495 AbstractCegarLoop]: Abstraction has 1768 states and 2282 transitions. [2022-11-25 22:27:00,235 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) [2022-11-25 22:27:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2282 transitions. [2022-11-25 22:27:00,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-25 22:27:00,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:00,236 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2022-11-25 22:27:00,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:27:00,237 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:27:00,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:00,237 INFO L85 PathProgramCache]: Analyzing trace with hash 614541731, now seen corresponding path program 1 times [2022-11-25 22:27:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:00,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400929716] [2022-11-25 22:27:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 46 proven. 201 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-25 22:27:00,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:00,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400929716] [2022-11-25 22:27:00,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400929716] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:27:00,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848830722] [2022-11-25 22:27:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:00,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:00,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:00,468 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:00,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:27:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:00,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:27:00,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:27:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 46 proven. 201 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-25 22:27:00,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-25 22:27:01,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848830722] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:27:01,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:27:01,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2022-11-25 22:27:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33196074] [2022-11-25 22:27:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:27:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:27:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:27:01,326 INFO L87 Difference]: Start difference. First operand 1768 states and 2282 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:27:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:01,567 INFO L93 Difference]: Finished difference Result 5056 states and 6474 transitions. [2022-11-25 22:27:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:27:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 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 185 [2022-11-25 22:27:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:01,577 INFO L225 Difference]: With dead ends: 5056 [2022-11-25 22:27:01,578 INFO L226 Difference]: Without dead ends: 3290 [2022-11-25 22:27:01,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:27:01,581 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 312 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:01,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 751 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:27:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-11-25 22:27:01,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3232. [2022-11-25 22:27:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3227 states have (on average 1.2798264642082429) internal successors, (4130), 3231 states have internal predecessors, (4130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:27:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4130 transitions. [2022-11-25 22:27:01,794 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4130 transitions. Word has length 185 [2022-11-25 22:27:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:01,795 INFO L495 AbstractCegarLoop]: Abstraction has 3232 states and 4130 transitions. [2022-11-25 22:27:01,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:27:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4130 transitions. [2022-11-25 22:27:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-25 22:27:01,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:01,797 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:01,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:27:02,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:02,003 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:27:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:02,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1058583005, now seen corresponding path program 1 times [2022-11-25 22:27:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:02,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532485465] [2022-11-25 22:27:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:02,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:27:02,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050647259] [2022-11-25 22:27:02,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:02,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:02,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:02,032 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:02,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 22:27:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:02,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:27:02,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:27:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 114 proven. 83 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-25 22:27:02,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 165 proven. 32 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-25 22:27:02,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532485465] [2022-11-25 22:27:02,755 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:27:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050647259] [2022-11-25 22:27:02,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050647259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:27:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1275914153] [2022-11-25 22:27:02,759 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-25 22:27:02,759 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:27:02,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:27:02,761 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:27:02,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:27:49,868 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:28:33,517 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56443#(and (not (<= 0 (+ 2147483649 |ULTIMATE.start_ssl3_accept_~s__ctx__stats__sess_accept~0#1|))) (<= 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) (<= |ULTIMATE.start_ssl3_accept_~tmp___6~0#1| 2147483647) (= |ULTIMATE.start_ssl3_accept_~skip~0#1| 0) (not (= |ULTIMATE.start_ssl3_accept_~s__init_buf___0~0#1| 0)) (<= |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)) (<= 0 (+ |ULTIMATE.start_ssl3_accept_~ret~0#1| 1)) (<= |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)) (= |ULTIMATE.start_ssl3_accept_~s__init_num~0#1| 0) (<= 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|)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___4~0#1| 0)) (<= |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__server~0#1| 1) (<= |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)) (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (<= 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)) (not (= |ULTIMATE.start_ssl3_accept_~tmp___5~0#1| 0)) (<= |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)) (= 8192 |ULTIMATE.start_ssl3_accept_~s__type~0#1|) (<= |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) (exists ((v_~bitwiseOr_4 Int)) (= (ite (or (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 1) (= |ULTIMATE.start_ssl3_accept_~s__version~0#1| 0)) 1 v_~bitwiseOr_4) 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_~num1~0#1| 2147483647) (<= 8464 |ULTIMATE.start_ssl3_accept_#in~initial_state#1|) (<= 0 |#StackHeapBarrier|) (<= 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 [2022-11-25 22:28:33,518 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:28:33,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:28:33,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-11-25 22:28:33,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010053940] [2022-11-25 22:28:33,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:28:33,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:28:33,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:33,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:28:33,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=3571, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 22:28:33,520 INFO L87 Difference]: Start difference. First operand 3232 states and 4130 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:34,202 INFO L93 Difference]: Finished difference Result 5888 states and 7486 transitions. [2022-11-25 22:28:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:28:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 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 189 [2022-11-25 22:28:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:34,214 INFO L225 Difference]: With dead ends: 5888 [2022-11-25 22:28:34,214 INFO L226 Difference]: Without dead ends: 2144 [2022-11-25 22:28:34,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 481 SyntacticMatches, 22 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=600, Invalid=3822, Unknown=0, NotChecked=0, Total=4422 [2022-11-25 22:28:34,221 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 154 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:34,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 556 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:28:34,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2022-11-25 22:28:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2126. [2022-11-25 22:28:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2126 states, 2121 states have (on average 1.2866572371522866) internal successors, (2729), 2125 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2729 transitions. [2022-11-25 22:28:34,356 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2729 transitions. Word has length 189 [2022-11-25 22:28:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:34,357 INFO L495 AbstractCegarLoop]: Abstraction has 2126 states and 2729 transitions. [2022-11-25 22:28:34,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2729 transitions. [2022-11-25 22:28:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 22:28:34,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:34,359 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:34,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:34,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-11-25 22:28:34,565 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:28:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:34,566 INFO L85 PathProgramCache]: Analyzing trace with hash -39922415, now seen corresponding path program 1 times [2022-11-25 22:28:34,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:34,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301401599] [2022-11-25 22:28:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:34,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:34,593 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:34,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779752977] [2022-11-25 22:28:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:34,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:34,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:34,595 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:34,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 22:28:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:34,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:28:34,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-25 22:28:34,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:34,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:34,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301401599] [2022-11-25 22:28:34,787 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:34,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779752977] [2022-11-25 22:28:34,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779752977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:34,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:34,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:28:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176654773] [2022-11-25 22:28:34,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:34,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:34,789 INFO L87 Difference]: Start difference. First operand 2126 states and 2729 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:35,038 INFO L93 Difference]: Finished difference Result 4522 states and 5776 transitions. [2022-11-25 22:28:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:35,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2022-11-25 22:28:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:35,045 INFO L225 Difference]: With dead ends: 4522 [2022-11-25 22:28:35,046 INFO L226 Difference]: Without dead ends: 2398 [2022-11-25 22:28:35,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:35,049 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 8 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:35,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 211 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:28:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-11-25 22:28:35,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2382. [2022-11-25 22:28:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.265881363062684) internal successors, (3009), 2381 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:35,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3009 transitions. [2022-11-25 22:28:35,180 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3009 transitions. Word has length 194 [2022-11-25 22:28:35,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:35,180 INFO L495 AbstractCegarLoop]: Abstraction has 2382 states and 3009 transitions. [2022-11-25 22:28:35,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3009 transitions. [2022-11-25 22:28:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-25 22:28:35,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:35,182 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, 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] [2022-11-25 22:28:35,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:35,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:35,391 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:28:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash 413170700, now seen corresponding path program 1 times [2022-11-25 22:28:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533500557] [2022-11-25 22:28:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:35,419 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:35,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991407152] [2022-11-25 22:28:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:35,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:35,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:35,421 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:35,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 22:28:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:35,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:28:35,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-25 22:28:35,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:35,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:35,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533500557] [2022-11-25 22:28:35,619 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:35,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991407152] [2022-11-25 22:28:35,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991407152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:35,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:35,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:28:35,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979390453] [2022-11-25 22:28:35,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:35,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:35,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:35,621 INFO L87 Difference]: Start difference. First operand 2382 states and 3009 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:35,883 INFO L93 Difference]: Finished difference Result 4786 states and 6056 transitions. [2022-11-25 22:28:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2022-11-25 22:28:35,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:35,891 INFO L225 Difference]: With dead ends: 4786 [2022-11-25 22:28:35,891 INFO L226 Difference]: Without dead ends: 2406 [2022-11-25 22:28:35,893 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 [2022-11-25 22:28:35,894 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 8 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:35,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 211 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:28:35,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-11-25 22:28:36,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2394. [2022-11-25 22:28:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2394 states, 2389 states have (on average 1.254499790707409) internal successors, (2997), 2393 states have internal predecessors, (2997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 2997 transitions. [2022-11-25 22:28:36,026 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 2997 transitions. Word has length 224 [2022-11-25 22:28:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:36,027 INFO L495 AbstractCegarLoop]: Abstraction has 2394 states and 2997 transitions. [2022-11-25 22:28:36,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 2997 transitions. [2022-11-25 22:28:36,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-25 22:28:36,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:36,029 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, 1] [2022-11-25 22:28:36,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:36,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:36,244 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:28:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1781071042, now seen corresponding path program 1 times [2022-11-25 22:28:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:36,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612997202] [2022-11-25 22:28:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:36,267 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:28:36,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207269585] [2022-11-25 22:28:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:36,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:36,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:36,269 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:36,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 22:28:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:36,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:28:36,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-11-25 22:28:36,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:28:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2022-11-25 22:28:37,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:37,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612997202] [2022-11-25 22:28:37,190 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:28:37,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207269585] [2022-11-25 22:28:37,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207269585] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:28:37,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:28:37,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 22:28:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130292111] [2022-11-25 22:28:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:37,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:37,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:37,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:37,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:28:37,192 INFO L87 Difference]: Start difference. First operand 2394 states and 2997 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:37,390 INFO L93 Difference]: Finished difference Result 4233 states and 5350 transitions. [2022-11-25 22:28:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 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 255 [2022-11-25 22:28:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:37,403 INFO L225 Difference]: With dead ends: 4233 [2022-11-25 22:28:37,403 INFO L226 Difference]: Without dead ends: 3280 [2022-11-25 22:28:37,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:28:37,406 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:37,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 291 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:28:37,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2022-11-25 22:28:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 3263. [2022-11-25 22:28:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3258 states have (on average 1.261817065684469) internal successors, (4111), 3262 states have internal predecessors, (4111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4111 transitions. [2022-11-25 22:28:37,585 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4111 transitions. Word has length 255 [2022-11-25 22:28:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:37,586 INFO L495 AbstractCegarLoop]: Abstraction has 3263 states and 4111 transitions. [2022-11-25 22:28:37,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4111 transitions. [2022-11-25 22:28:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-25 22:28:37,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:37,588 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:37,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:37,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:37,795 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:28:37,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash 606588893, now seen corresponding path program 1 times [2022-11-25 22:28:37,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:37,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921312014] [2022-11-25 22:28:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 341 proven. 56 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-11-25 22:28:38,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:38,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921312014] [2022-11-25 22:28:38,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921312014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:28:38,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330055186] [2022-11-25 22:28:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:38,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:38,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:38,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:38,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 22:28:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:38,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:28:38,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:38,269 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2022-11-25 22:28:38,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:28:38,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330055186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:38,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:28:38,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-25 22:28:38,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900796989] [2022-11-25 22:28:38,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:38,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:38,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:28:38,272 INFO L87 Difference]: Start difference. First operand 3263 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:38,562 INFO L93 Difference]: Finished difference Result 5511 states and 6966 transitions. [2022-11-25 22:28:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:38,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 269 [2022-11-25 22:28:38,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:38,574 INFO L225 Difference]: With dead ends: 5511 [2022-11-25 22:28:38,574 INFO L226 Difference]: Without dead ends: 2250 [2022-11-25 22:28:38,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:28:38,577 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 35 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:38,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 211 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:28:38,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2022-11-25 22:28:38,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 1829. [2022-11-25 22:28:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1824 states have (on average 1.21875) internal successors, (2223), 1828 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2223 transitions. [2022-11-25 22:28:38,685 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2223 transitions. Word has length 269 [2022-11-25 22:28:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:38,686 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2223 transitions. [2022-11-25 22:28:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:28:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2223 transitions. [2022-11-25 22:28:38,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-25 22:28:38,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:38,689 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 6, 5, 5, 4, 4, 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, 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] [2022-11-25 22:28:38,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:38,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:38,895 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 22:28:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:38,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2011757817, now seen corresponding path program 1 times [2022-11-25 22:28:38,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:38,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534378118] [2022-11-25 22:28:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 442 proven. 322 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2022-11-25 22:28:39,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:39,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534378118] [2022-11-25 22:28:39,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534378118] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:28:39,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945261761] [2022-11-25 22:28:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:39,250 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:39,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dfd7044-c359-41e8-a2d9-4a4e70484603/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 22:28:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:39,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:28:39,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 407 proven. 40 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-11-25 22:28:39,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:28:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 353 proven. 8 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2022-11-25 22:28:39,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945261761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:28:39,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [508864558] [2022-11-25 22:28:39,675 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-11-25 22:28:39,675 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:28:39,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:28:39,676 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:28:39,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs