./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW --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 c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 --- 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-4e7fbc6 [2022-11-23 13:40:39,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:40:39,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:40:39,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:40:39,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:40:39,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:40:39,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:40:39,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:40:39,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:40:39,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:40:39,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:40:39,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:40:39,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:40:39,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:40:39,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:40:39,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:40:39,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:40:39,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:40:39,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:40:39,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:40:39,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:40:39,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:40:39,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:40:39,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:40:39,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:40:39,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:40:39,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:40:39,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:40:39,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:40:39,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:40:39,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:40:39,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:40:39,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:40:39,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:40:39,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:40:39,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:40:39,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:40:39,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:40:39,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:40:39,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:40:39,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:40:39,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 13:40:39,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:40:39,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:40:39,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:40:39,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:40:39,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:40:39,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:40:39,493 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:40:39,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:40:39,494 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:40:39,494 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:40:39,494 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:40:39,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:40:39,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:40:39,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:40:39,495 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:40:39,495 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:40:39,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:40:39,496 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:40:39,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:40:39,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:40:39,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:40:39,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:40:39,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:40:39,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:40:39,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:40:39,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:40:39,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:40:39,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:40:39,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:40:39,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:40:39,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:40:39,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:40:39,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:40:39,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:40:39,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:39,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:40:39,501 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:40:39,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:40:39,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:40:39,501 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:40:39,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:40:39,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:40:39,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:40:39,502 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_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 [2022-11-23 13:40:39,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:40:39,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:40:39,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:40:39,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:40:39,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:40:39,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2022-11-23 13:40:42,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:40:43,122 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:40:43,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2022-11-23 13:40:43,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/b3e6ae29d/587f6d4be52e405099f2dddef9fd2c23/FLAG12de7c83f [2022-11-23 13:40:43,155 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/b3e6ae29d/587f6d4be52e405099f2dddef9fd2c23 [2022-11-23 13:40:43,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:40:43,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:40:43,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:43,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:40:43,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:40:43,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1433ea85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43, skipping insertion in model container [2022-11-23 13:40:43,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:40:43,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:40:43,407 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_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2022-11-23 13:40:43,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:43,480 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:40:43,492 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_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2022-11-23 13:40:43,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:43,569 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:40:43,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43 WrapperNode [2022-11-23 13:40:43,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:43,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:43,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:40:43,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:40:43,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,648 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 212 [2022-11-23 13:40:43,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:43,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:40:43,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:40:43,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:40:43,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:40:43,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:40:43,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:40:43,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:40:43,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (1/1) ... [2022-11-23 13:40:43,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:43,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:43,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:40:43,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:40:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:40:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:40:43,795 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 13:40:43,795 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 13:40:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:40:43,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:40:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 13:40:43,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 13:40:43,927 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:40:43,929 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:40:44,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:40:44,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:40:44,817 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 13:40:44,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:44 BoogieIcfgContainer [2022-11-23 13:40:44,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:40:44,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:40:44,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:40:44,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:40:44,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:40:43" (1/3) ... [2022-11-23 13:40:44,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300be0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:44, skipping insertion in model container [2022-11-23 13:40:44,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:43" (2/3) ... [2022-11-23 13:40:44,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300be0be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:44, skipping insertion in model container [2022-11-23 13:40:44,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:44" (3/3) ... [2022-11-23 13:40:44,830 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2022-11-23 13:40:44,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:40:44,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 13:40:44,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:40:44,913 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;@1be6360c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:40:44,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-23 13:40:44,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.711111111111111) internal successors, (77), 63 states have internal predecessors, (77), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 13:40:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 13:40:44,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:44,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:44,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1248764653, now seen corresponding path program 1 times [2022-11-23 13:40:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:44,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604426321] [2022-11-23 13:40:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:44,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:45,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:45,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604426321] [2022-11-23 13:40:45,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604426321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:45,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:45,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532794872] [2022-11-23 13:40:45,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:45,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:40:45,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:40:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:45,212 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.711111111111111) internal successors, (77), 63 states have internal predecessors, (77), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:45,280 INFO L93 Difference]: Finished difference Result 140 states and 186 transitions. [2022-11-23 13:40:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:40:45,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 13:40:45,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:45,300 INFO L225 Difference]: With dead ends: 140 [2022-11-23 13:40:45,300 INFO L226 Difference]: Without dead ends: 58 [2022-11-23 13:40:45,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:45,312 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:45,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-23 13:40:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-23 13:40:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 50 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-11-23 13:40:45,371 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 8 [2022-11-23 13:40:45,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:45,373 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-11-23 13:40:45,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-11-23 13:40:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 13:40:45,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:45,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:45,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:40:45,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:45,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1247463900, now seen corresponding path program 1 times [2022-11-23 13:40:45,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:45,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719351121] [2022-11-23 13:40:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:45,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:45,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:45,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719351121] [2022-11-23 13:40:45,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719351121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:45,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:45,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:40:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506355365] [2022-11-23 13:40:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:45,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:40:45,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:45,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:40:45,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:40:45,544 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:45,687 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2022-11-23 13:40:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:40:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 13:40:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:45,691 INFO L225 Difference]: With dead ends: 152 [2022-11-23 13:40:45,691 INFO L226 Difference]: Without dead ends: 96 [2022-11-23 13:40:45,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:45,693 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 55 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:45,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 137 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-23 13:40:45,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2022-11-23 13:40:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.5) internal successors, (99), 79 states have internal predecessors, (99), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2022-11-23 13:40:45,707 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 8 [2022-11-23 13:40:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:45,707 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2022-11-23 13:40:45,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-11-23 13:40:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 13:40:45,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:45,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:45,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:40:45,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:45,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1442477319, now seen corresponding path program 1 times [2022-11-23 13:40:45,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:45,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185802145] [2022-11-23 13:40:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:45,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:45,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185802145] [2022-11-23 13:40:45,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185802145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:45,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:45,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:45,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520832973] [2022-11-23 13:40:45,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:45,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:45,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:45,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:45,881 INFO L87 Difference]: Start difference. First operand 88 states and 109 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:46,079 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2022-11-23 13:40:46,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:46,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 13:40:46,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:46,090 INFO L225 Difference]: With dead ends: 165 [2022-11-23 13:40:46,091 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 13:40:46,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:46,095 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 87 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:46,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 184 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:46,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 13:40:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2022-11-23 13:40:46,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 85 states have internal predecessors, (105), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2022-11-23 13:40:46,123 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 12 [2022-11-23 13:40:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:46,123 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2022-11-23 13:40:46,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2022-11-23 13:40:46,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 13:40:46,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:46,125 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:46,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:40:46,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:46,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:46,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1648613086, now seen corresponding path program 1 times [2022-11-23 13:40:46,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:46,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247433380] [2022-11-23 13:40:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:40:46,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:46,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247433380] [2022-11-23 13:40:46,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247433380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:46,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:46,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724000542] [2022-11-23 13:40:46,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:46,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:46,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:46,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:46,199 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:46,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:46,265 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2022-11-23 13:40:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:46,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-23 13:40:46,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:46,267 INFO L225 Difference]: With dead ends: 98 [2022-11-23 13:40:46,267 INFO L226 Difference]: Without dead ends: 97 [2022-11-23 13:40:46,268 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 [2022-11-23 13:40:46,283 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:46,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 98 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:46,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-23 13:40:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2022-11-23 13:40:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 71 states have (on average 1.4366197183098592) internal successors, (102), 83 states have internal predecessors, (102), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 112 transitions. [2022-11-23 13:40:46,294 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 112 transitions. Word has length 14 [2022-11-23 13:40:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:46,294 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 112 transitions. [2022-11-23 13:40:46,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:46,301 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 112 transitions. [2022-11-23 13:40:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:40:46,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:46,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:46,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:40:46,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:46,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:46,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1767123817, now seen corresponding path program 1 times [2022-11-23 13:40:46,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:46,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436687769] [2022-11-23 13:40:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:46,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:46,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:46,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436687769] [2022-11-23 13:40:46,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436687769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:46,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:46,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847923783] [2022-11-23 13:40:46,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:46,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:46,418 INFO L87 Difference]: Start difference. First operand 92 states and 112 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:46,541 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2022-11-23 13:40:46,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:46,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 13:40:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:46,543 INFO L225 Difference]: With dead ends: 106 [2022-11-23 13:40:46,543 INFO L226 Difference]: Without dead ends: 104 [2022-11-23 13:40:46,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:46,544 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 60 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:46,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 183 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-23 13:40:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2022-11-23 13:40:46,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 83 states have internal predecessors, (101), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 111 transitions. [2022-11-23 13:40:46,596 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 111 transitions. Word has length 13 [2022-11-23 13:40:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 111 transitions. [2022-11-23 13:40:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2022-11-23 13:40:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:40:46,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:46,599 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:46,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:40:46,599 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:46,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:46,600 INFO L85 PathProgramCache]: Analyzing trace with hash -403974473, now seen corresponding path program 1 times [2022-11-23 13:40:46,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535218948] [2022-11-23 13:40:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:46,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:46,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:46,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535218948] [2022-11-23 13:40:46,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535218948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:46,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:46,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082330212] [2022-11-23 13:40:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:46,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:46,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:46,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:46,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:46,694 INFO L87 Difference]: Start difference. First operand 92 states and 111 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:46,831 INFO L93 Difference]: Finished difference Result 130 states and 156 transitions. [2022-11-23 13:40:46,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:46,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-23 13:40:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:46,833 INFO L225 Difference]: With dead ends: 130 [2022-11-23 13:40:46,834 INFO L226 Difference]: Without dead ends: 128 [2022-11-23 13:40:46,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:40:46,836 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 79 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:46,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 142 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:46,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-23 13:40:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 112. [2022-11-23 13:40:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 90 states have (on average 1.4444444444444444) internal successors, (130), 102 states have internal predecessors, (130), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 140 transitions. [2022-11-23 13:40:46,873 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 140 transitions. Word has length 15 [2022-11-23 13:40:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:46,873 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 140 transitions. [2022-11-23 13:40:46,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 140 transitions. [2022-11-23 13:40:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:40:46,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:46,876 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:46,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:40:46,877 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:46,877 INFO L85 PathProgramCache]: Analyzing trace with hash -432601829, now seen corresponding path program 1 times [2022-11-23 13:40:46,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:46,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517888194] [2022-11-23 13:40:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:46,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:46,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:46,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517888194] [2022-11-23 13:40:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517888194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:46,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:46,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277823796] [2022-11-23 13:40:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:46,965 INFO L87 Difference]: Start difference. First operand 112 states and 140 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:47,074 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2022-11-23 13:40:47,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:47,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-23 13:40:47,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:47,076 INFO L225 Difference]: With dead ends: 128 [2022-11-23 13:40:47,077 INFO L226 Difference]: Without dead ends: 125 [2022-11-23 13:40:47,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:40:47,079 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 77 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:47,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 143 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:47,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-23 13:40:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2022-11-23 13:40:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3978494623655915) internal successors, (130), 104 states have internal predecessors, (130), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2022-11-23 13:40:47,109 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 15 [2022-11-23 13:40:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:47,110 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2022-11-23 13:40:47,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2022-11-23 13:40:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:40:47,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:47,114 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:47,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:40:47,114 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:47,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash -706482866, now seen corresponding path program 1 times [2022-11-23 13:40:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:47,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576347264] [2022-11-23 13:40:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:47,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:47,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576347264] [2022-11-23 13:40:47,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576347264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677635920] [2022-11-23 13:40:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:47,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:47,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:47,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:47,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:40:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:47,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:40:47,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:47,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:40:47,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677635920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:47,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:40:47,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-23 13:40:47,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505612706] [2022-11-23 13:40:47,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:47,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:40:47,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:47,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:40:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:47,354 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:47,422 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2022-11-23 13:40:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:40:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 13:40:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:47,424 INFO L225 Difference]: With dead ends: 134 [2022-11-23 13:40:47,425 INFO L226 Difference]: Without dead ends: 133 [2022-11-23 13:40:47,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:47,426 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 9 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:47,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 104 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-23 13:40:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2022-11-23 13:40:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.4) internal successors, (126), 101 states have internal predecessors, (126), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2022-11-23 13:40:47,446 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 15 [2022-11-23 13:40:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:47,446 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2022-11-23 13:40:47,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:47,446 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2022-11-23 13:40:47,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:40:47,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:47,447 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:47,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:40:47,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 13:40:47,648 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1555842811, now seen corresponding path program 1 times [2022-11-23 13:40:47,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:47,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735718265] [2022-11-23 13:40:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:47,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:47,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:40:47,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:47,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735718265] [2022-11-23 13:40:47,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735718265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:47,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:47,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:40:47,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492828894] [2022-11-23 13:40:47,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:47,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:40:47,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:47,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:40:47,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:40:47,702 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:47,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:47,804 INFO L93 Difference]: Finished difference Result 135 states and 163 transitions. [2022-11-23 13:40:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:40:47,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 13:40:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:47,806 INFO L225 Difference]: With dead ends: 135 [2022-11-23 13:40:47,806 INFO L226 Difference]: Without dead ends: 134 [2022-11-23 13:40:47,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:40:47,807 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 9 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:47,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 140 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-23 13:40:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 109. [2022-11-23 13:40:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 99 states have internal predecessors, (122), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:40:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-11-23 13:40:47,825 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 132 transitions. Word has length 18 [2022-11-23 13:40:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:47,825 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-11-23 13:40:47,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 132 transitions. [2022-11-23 13:40:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 13:40:47,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:47,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:47,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 13:40:47,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash -131870017, now seen corresponding path program 1 times [2022-11-23 13:40:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:47,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924903167] [2022-11-23 13:40:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:47,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:40:48,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:48,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924903167] [2022-11-23 13:40:48,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924903167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:48,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:48,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 13:40:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726957743] [2022-11-23 13:40:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:48,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 13:40:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:48,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 13:40:48,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:40:48,209 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 13:40:48,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:48,367 INFO L93 Difference]: Finished difference Result 171 states and 199 transitions. [2022-11-23 13:40:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:40:48,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-23 13:40:48,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:48,369 INFO L225 Difference]: With dead ends: 171 [2022-11-23 13:40:48,369 INFO L226 Difference]: Without dead ends: 143 [2022-11-23 13:40:48,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:40:48,370 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 26 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:48,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 341 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-23 13:40:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 115. [2022-11-23 13:40:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 104 states have internal predecessors, (125), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-23 13:40:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2022-11-23 13:40:48,382 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 21 [2022-11-23 13:40:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:48,382 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2022-11-23 13:40:48,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 13:40:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2022-11-23 13:40:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 13:40:48,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:48,384 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:48,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 13:40:48,384 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:48,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:48,385 INFO L85 PathProgramCache]: Analyzing trace with hash -406151821, now seen corresponding path program 1 times [2022-11-23 13:40:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:48,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305289635] [2022-11-23 13:40:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:40:48,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:48,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305289635] [2022-11-23 13:40:48,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305289635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:48,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:48,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598912301] [2022-11-23 13:40:48,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:48,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:48,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:48,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:48,432 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:48,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:48,538 INFO L93 Difference]: Finished difference Result 129 states and 156 transitions. [2022-11-23 13:40:48,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 13:40:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:48,540 INFO L225 Difference]: With dead ends: 129 [2022-11-23 13:40:48,540 INFO L226 Difference]: Without dead ends: 127 [2022-11-23 13:40:48,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:40:48,541 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 73 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:48,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 138 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:48,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-23 13:40:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2022-11-23 13:40:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.348314606741573) internal successors, (120), 100 states have internal predecessors, (120), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-23 13:40:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2022-11-23 13:40:48,555 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 21 [2022-11-23 13:40:48,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:48,555 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2022-11-23 13:40:48,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:48,556 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2022-11-23 13:40:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 13:40:48,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:48,556 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:48,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 13:40:48,557 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -434779177, now seen corresponding path program 1 times [2022-11-23 13:40:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:48,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370385112] [2022-11-23 13:40:48,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:48,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:40:48,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:48,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370385112] [2022-11-23 13:40:48,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370385112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:48,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:48,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:48,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148151063] [2022-11-23 13:40:48,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:48,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:40:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:40:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:48,604 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:48,703 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2022-11-23 13:40:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:40:48,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 13:40:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:48,705 INFO L225 Difference]: With dead ends: 121 [2022-11-23 13:40:48,705 INFO L226 Difference]: Without dead ends: 119 [2022-11-23 13:40:48,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:40:48,706 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 71 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:48,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 138 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-23 13:40:48,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2022-11-23 13:40:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 93 states have internal predecessors, (112), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-23 13:40:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-11-23 13:40:48,725 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 21 [2022-11-23 13:40:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:48,726 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-11-23 13:40:48,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-11-23 13:40:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 13:40:48,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:48,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 13:40:48,728 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:48,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1396572050, now seen corresponding path program 1 times [2022-11-23 13:40:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:48,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56750086] [2022-11-23 13:40:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:40:49,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:49,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56750086] [2022-11-23 13:40:49,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56750086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:49,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906028798] [2022-11-23 13:40:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:49,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:49,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:49,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:40:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:49,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 13:40:49,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:40:49,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:40:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:40:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906028798] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:40:49,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [829007794] [2022-11-23 13:40:49,677 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-23 13:40:49,677 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:40:49,681 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:40:49,686 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:40:49,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:40:50,616 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-23 13:40:50,750 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:40:53,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [829007794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:53,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:40:53,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [7, 12, 8] total 35 [2022-11-23 13:40:53,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702569667] [2022-11-23 13:40:53,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:53,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 13:40:53,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 13:40:53,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 13:40:53,634 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 13:40:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:56,639 INFO L93 Difference]: Finished difference Result 229 states and 283 transitions. [2022-11-23 13:40:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 13:40:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2022-11-23 13:40:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:56,642 INFO L225 Difference]: With dead ends: 229 [2022-11-23 13:40:56,642 INFO L226 Difference]: Without dead ends: 227 [2022-11-23 13:40:56,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=180, Invalid=1712, Unknown=0, NotChecked=0, Total=1892 [2022-11-23 13:40:56,643 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 290 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:56,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 225 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 13:40:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-23 13:40:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 135. [2022-11-23 13:40:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 120 states have internal predecessors, (141), 9 states have call successors, (9), 4 states have call predecessors, (9), 11 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-23 13:40:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2022-11-23 13:40:56,676 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 25 [2022-11-23 13:40:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:56,677 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2022-11-23 13:40:56,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 13:40:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2022-11-23 13:40:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 13:40:56,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:56,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:56,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:40:56,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:56,887 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:40:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:56,887 INFO L85 PathProgramCache]: Analyzing trace with hash 418648002, now seen corresponding path program 1 times [2022-11-23 13:40:56,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:56,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136624809] [2022-11-23 13:40:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:56,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:40:57,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136624809] [2022-11-23 13:40:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136624809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698839575] [2022-11-23 13:40:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:57,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:57,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:57,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:57,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:40:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:57,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 13:40:57,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 13:40:57,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:40:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 13:40:57,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698839575] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:40:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [724797296] [2022-11-23 13:40:57,760 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-23 13:40:57,762 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:40:57,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:40:57,763 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:40:57,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:40:57,998 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-23 13:40:58,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:41:03,024 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4514#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (not (<= 0 (+ (ite (<= (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) 2147483647) (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (+ (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (- 4294967296))) 2147483520))) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (not (= (mod |ULTIMATE.start_addflt_~b#1| 4294967296) 0)) (= (select |#length| 2) 24) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (and (= |ULTIMATE.start_main_~sa~0#1| |ULTIMATE.start_main_~tmp~2#1|) (not (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296)) (= |ULTIMATE.start_main_~tmp~2#1| 1)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp~2#1|)))) (and (= (+ |ULTIMATE.start_main_~sa~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296)))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= (select |#valid| 1) 1) (or (and (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (and (not (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296)) (= 1 |ULTIMATE.start_main_~tmp___0~0#1|)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp___0~0#1|))) (= |ULTIMATE.start_main_~sb~0#1| |ULTIMATE.start_main_~tmp___0~0#1|))) (<= 0 |ULTIMATE.start_addflt_~ma~0#1|) (or (<= |ULTIMATE.start_addflt_~ma~0#1| 16777215) (< |ULTIMATE.start_addflt_~a#1| 0)) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#in~b#1|) (= (select (select |#memory_int| 1) 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select (select |#memory_int| 1) 1) 0) (or (and (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_~b#1|) (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296)) (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~a#1|)) (and (= |ULTIMATE.start_addflt_#in~a#1| |ULTIMATE.start_addflt_~a#1|) (not (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296))) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~b#1|))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 13:41:03,025 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:41:03,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 13:41:03,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 16 [2022-11-23 13:41:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965771372] [2022-11-23 13:41:03,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 13:41:03,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 13:41:03,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:41:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 13:41:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-11-23 13:41:03,027 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 16 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 13:41:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:03,558 INFO L93 Difference]: Finished difference Result 250 states and 307 transitions. [2022-11-23 13:41:03,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 13:41:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 27 [2022-11-23 13:41:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:03,560 INFO L225 Difference]: With dead ends: 250 [2022-11-23 13:41:03,560 INFO L226 Difference]: Without dead ends: 105 [2022-11-23 13:41:03,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=140, Invalid=1050, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 13:41:03,562 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:03,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 461 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 13:41:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-23 13:41:03,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 91. [2022-11-23 13:41:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 79 states have internal predecessors, (91), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-23 13:41:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2022-11-23 13:41:03,578 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 27 [2022-11-23 13:41:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:03,578 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2022-11-23 13:41:03,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 13:41:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2022-11-23 13:41:03,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 13:41:03,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:03,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:03,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:03,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 13:41:03,785 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:03,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1679092977, now seen corresponding path program 1 times [2022-11-23 13:41:03,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:41:03,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081250823] [2022-11-23 13:41:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:41:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:41:04,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:41:04,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081250823] [2022-11-23 13:41:04,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081250823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:04,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141095772] [2022-11-23 13:41:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:04,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:41:04,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:41:04,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:41:04,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 13:41:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:04,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 13:41:04,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:41:04,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:05,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141095772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:05,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268640533] [2022-11-23 13:41:05,948 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-23 13:41:05,949 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:41:05,949 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:41:05,949 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:41:05,949 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:41:06,144 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 60 for LOIs [2022-11-23 13:41:06,476 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:41:10,469 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5085#(and (<= |ULTIMATE.start_main_~eb~2#1| 127) (= (select |#length| 3) 12) (not (<= 0 (+ (ite (<= (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) 2147483647) (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (+ (mod (div |ULTIMATE.start_addflt_~a#1| 16777216) 4294967296) (- 4294967296))) 2147483520))) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (not (= (mod |ULTIMATE.start_addflt_~b#1| 4294967296) 0)) (= (select |#length| 2) 24) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (and (= |ULTIMATE.start_main_~sa~0#1| |ULTIMATE.start_main_~tmp~2#1|) (not (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296)) (= |ULTIMATE.start_main_~tmp~2#1| 1)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~a~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp~2#1|)))) (and (= (+ |ULTIMATE.start_main_~sa~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~a~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296)))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= (select |#valid| 1) 1) (or (and (= (+ |ULTIMATE.start_main_~sb~0#1| 1) 0) (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (and (not (< (mod |ULTIMATE.start_main_~b~0#1| 4294967296) (mod |ULTIMATE.start_main_~zero~0#1| 4294967296))) (or (and (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296)) (= 1 |ULTIMATE.start_main_~tmp___0~0#1|)) (and (not (< (mod |ULTIMATE.start_main_~zero~0#1| 4294967296) (mod |ULTIMATE.start_main_~b~0#1| 4294967296))) (= 0 |ULTIMATE.start_main_~tmp___0~0#1|))) (= |ULTIMATE.start_main_~sb~0#1| |ULTIMATE.start_main_~tmp___0~0#1|))) (<= 0 |ULTIMATE.start_addflt_~ma~0#1|) (or (<= |ULTIMATE.start_addflt_~ma~0#1| 16777215) (< |ULTIMATE.start_addflt_~a#1| 0)) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#in~b#1|) (= (select (select |#memory_int| 1) 0) 48) (<= |ULTIMATE.start_main_~ea~2#1| 127) (= (select (select |#memory_int| 1) 1) 0) (or (and (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_~b#1|) (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296)) (= |ULTIMATE.start_addflt_~tmp~0#1| |ULTIMATE.start_addflt_#in~a#1|) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~a#1|)) (and (= |ULTIMATE.start_addflt_#in~a#1| |ULTIMATE.start_addflt_~a#1|) (not (< (mod |ULTIMATE.start_addflt_#in~a#1| 4294967296) (mod |ULTIMATE.start_addflt_#in~b#1| 4294967296))) (= |ULTIMATE.start_addflt_#in~b#1| |ULTIMATE.start_addflt_~b#1|))) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 13:41:10,469 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:41:10,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 13:41:10,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2022-11-23 13:41:10,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858656091] [2022-11-23 13:41:10,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 13:41:10,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 13:41:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:41:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 13:41:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-11-23 13:41:10,471 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 13:41:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:10,642 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2022-11-23 13:41:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:41:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-23 13:41:10,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:10,643 INFO L225 Difference]: With dead ends: 123 [2022-11-23 13:41:10,644 INFO L226 Difference]: Without dead ends: 122 [2022-11-23 13:41:10,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-23 13:41:10,645 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 66 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:10,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 289 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:10,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-23 13:41:10,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 98. [2022-11-23 13:41:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.263157894736842) internal successors, (96), 84 states have internal predecessors, (96), 7 states have call successors, (7), 4 states have call predecessors, (7), 7 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-23 13:41:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2022-11-23 13:41:10,667 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 31 [2022-11-23 13:41:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:10,667 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2022-11-23 13:41:10,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-23 13:41:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2022-11-23 13:41:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 13:41:10,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:10,668 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:10,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:10,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 13:41:10,880 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:10,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1592208719, now seen corresponding path program 2 times [2022-11-23 13:41:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:41:10,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819301400] [2022-11-23 13:41:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:10,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:41:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:41:11,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:41:11,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819301400] [2022-11-23 13:41:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819301400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:11,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:41:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177775489] [2022-11-23 13:41:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:41:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:41:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:41:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:41:11,186 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 13:41:11,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:11,301 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2022-11-23 13:41:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:41:11,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-23 13:41:11,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:11,307 INFO L225 Difference]: With dead ends: 129 [2022-11-23 13:41:11,307 INFO L226 Difference]: Without dead ends: 128 [2022-11-23 13:41:11,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:41:11,308 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 22 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:11,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 246 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-23 13:41:11,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2022-11-23 13:41:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 86 states have internal predecessors, (97), 7 states have call successors, (7), 4 states have call predecessors, (7), 8 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-23 13:41:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2022-11-23 13:41:11,329 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 31 [2022-11-23 13:41:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:11,330 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2022-11-23 13:41:11,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 13:41:11,330 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2022-11-23 13:41:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 13:41:11,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:11,331 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:41:11,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 13:41:11,332 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1299337520, now seen corresponding path program 1 times [2022-11-23 13:41:11,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:41:11,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888773240] [2022-11-23 13:41:11,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:11,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:41:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:41:11,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:41:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:41:11,478 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 13:41:11,479 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:41:11,481 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-23 13:41:11,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-23 13:41:11,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-23 13:41:11,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-23 13:41:11,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-23 13:41:11,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-23 13:41:11,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-23 13:41:11,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-23 13:41:11,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-23 13:41:11,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-23 13:41:11,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-23 13:41:11,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-23 13:41:11,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-23 13:41:11,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-23 13:41:11,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-23 13:41:11,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-23 13:41:11,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 13:41:11,490 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:11,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:41:11,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:41:11 BoogieIcfgContainer [2022-11-23 13:41:11,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:41:11,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:41:11,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:41:11,560 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:41:11,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:44" (3/4) ... [2022-11-23 13:41:11,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 13:41:11,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:41:11,564 INFO L158 Benchmark]: Toolchain (without parser) took 28399.26ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 102.8MB in the beginning and 179.2MB in the end (delta: -76.4MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,565 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:41:11,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.32ms. Allocated memory is still 172.0MB. Free memory was 102.6MB in the beginning and 135.2MB in the end (delta: -32.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.56ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 132.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,566 INFO L158 Benchmark]: Boogie Preprocessor took 66.23ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 131.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,567 INFO L158 Benchmark]: RCFGBuilder took 1104.01ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 78.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,567 INFO L158 Benchmark]: TraceAbstraction took 26736.41ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 78.2MB in the beginning and 180.2MB in the end (delta: -102.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2022-11-23 13:41:11,567 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 373.3MB. Free memory is still 179.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:41:11,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.32ms. Allocated memory is still 172.0MB. Free memory was 102.6MB in the beginning and 135.2MB in the end (delta: -32.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.56ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 132.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.23ms. Allocated memory is still 172.0MB. Free memory was 132.8MB in the beginning and 131.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1104.01ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 78.6MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 26736.41ms. Allocated memory was 172.0MB in the beginning and 373.3MB in the end (delta: 201.3MB). Free memory was 78.2MB in the beginning and 180.2MB in the end (delta: -102.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 373.3MB. Free memory is still 179.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 77, overapproximation of bitwiseOr at line 111, overapproximation of bitwiseAnd at line 112. Possible FailurePath: [L227] unsigned int a ; [L228] unsigned int ma = __VERIFIER_nondet_uint(); [L229] signed char ea = __VERIFIER_nondet_char(); [L230] unsigned int b ; [L231] unsigned int mb = __VERIFIER_nondet_uint(); [L232] signed char eb = __VERIFIER_nondet_char(); [L233] unsigned int r_add ; [L234] unsigned int zero ; [L235] int sa ; [L236] int sb ; [L237] int tmp ; [L238] int tmp___0 ; [L239] int tmp___1 ; [L240] int tmp___2 ; [L241] int tmp___3 ; [L242] int tmp___4 ; [L243] int tmp___5 ; [L244] int tmp___6 ; [L245] int tmp___7 ; [L246] int tmp___8 ; [L247] int tmp___9 ; [L248] int __retres23 ; VAL [ea=127, eb=127] [L252] CALL, EXPR base2flt(0, 0) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L30] COND TRUE ! m [L31] __retres4 = 0U VAL [__retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L81] return (__retres4); [L252] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=127] [L252] zero = base2flt(0, 0) [L253] CALL, EXPR base2flt(ma, ea) VAL [unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L30] COND FALSE !(! m) VAL [e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L36] COND FALSE !(m < 1U << 24U) VAL [e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L58] COND TRUE 1 VAL [e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L60] COND TRUE m >= 1U << 25U VAL [e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L65] COND TRUE e >= 127 [L66] __retres4 = 4294967295U VAL [__retres4=4294967295, e=127, m=33554432, unknown-#in~e-unknown=127, unknown-#in~m-unknown=33554432] [L81] return (__retres4); [L253] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=127, ma=33554432, zero=0] [L253] a = base2flt(ma, ea) [L254] CALL, EXPR base2flt(mb, eb) VAL [unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [e=127, m=16777218, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L30] COND FALSE !(! m) VAL [e=127, m=16777218, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L36] COND FALSE !(m < 1U << 24U) VAL [e=127, m=16777218, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L58] COND TRUE 1 VAL [e=127, m=16777218, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L60] COND FALSE !(m >= 1U << 25U) VAL [e=127, m=16777218, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L77] m = m & ~ (1U << 24U) VAL [e=127, m=16777217, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L78] EXPR e + 128 [L78] res = m | ((unsigned int ) (e + 128) << 24U) [L79] __retres4 = res VAL [__retres4=1, e=127, m=16777217, res=1, unknown-#in~e-unknown=127, unknown-#in~m-unknown=36028792740773890] [L81] return (__retres4); [L254] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=36028797018963969, ea=127, eb=127, ma=33554432, mb=16777218, zero=0] [L254] b = base2flt(mb, eb) [L256] COND FALSE !(a < zero) [L259] COND TRUE a > zero [L260] tmp = 1 [L264] sa = tmp [L266] COND FALSE !(b < zero) [L269] COND TRUE b > zero [L270] tmp___0 = 1 [L274] sb = tmp___0 [L277] CALL addflt(a, b) [L85] unsigned int res ; [L86] unsigned int ma ; [L87] unsigned int mb ; [L88] unsigned int delta ; [L89] int ea ; [L90] int eb ; [L91] unsigned int tmp ; [L92] unsigned int __retres10 ; [L95] COND FALSE !(a < b) VAL [a=4294967295, b=1, tmp=4294967295, unknown-#in~a-unknown=4294967295, unknown-#in~b-unknown=36028797018963969] [L102] COND FALSE !(! b) [L109] ma = a & ((1U << 24U) - 1U) VAL [a=4294967295, b=1, ma=0, tmp=4294967295, unknown-#in~a-unknown=4294967295, unknown-#in~b-unknown=36028797018963969] [L110] EXPR (int )(a >> 24U) - 128 [L110] ea = (int )(a >> 24U) - 128 [L111] ma = ma | (1U << 24U) [L112] mb = b & ((1U << 24U) - 1U) VAL [a=4294967295, b=1, ea=127, ma=16777216, mb=0, tmp=4294967295, unknown-#in~a-unknown=4294967295, unknown-#in~b-unknown=36028797018963969] [L113] (int )(b >> 24U) - 128 VAL [a=4294967295, b=1, ea=127, ma=16777216, mb=0, tmp=4294967295, unknown-#in~a-unknown=4294967295, unknown-#in~b-unknown=36028797018963969] - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 26.6s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 994 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 951 mSDsluCounter, 3041 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2264 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1846 IncrementalHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 777 mSDtfsCounter, 1846 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 338 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=13, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 329 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 423 ConstructedInterpolants, 0 QuantifiedInterpolants, 1139 SizeOfPredicates, 28 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 127/157 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 37, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 53, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 11, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 173, DAG_COMPRESSION_RETAINED_NODES: 49, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 13:41:11,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW --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 c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 --- 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-4e7fbc6 [2022-11-23 13:41:13,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:41:13,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:41:13,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:41:13,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:41:13,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:41:13,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:41:13,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:41:13,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:41:14,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:41:14,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:41:14,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:41:14,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:41:14,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:41:14,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:41:14,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:41:14,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:41:14,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:41:14,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:41:14,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:41:14,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:41:14,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:41:14,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:41:14,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:41:14,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:41:14,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:41:14,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:41:14,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:41:14,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:41:14,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:41:14,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:41:14,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:41:14,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:41:14,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:41:14,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:41:14,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:41:14,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:41:14,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:41:14,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:41:14,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:41:14,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:41:14,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-23 13:41:14,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:41:14,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:41:14,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:41:14,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:41:14,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:41:14,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:41:14,123 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:41:14,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:41:14,123 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:41:14,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:41:14,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:41:14,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:41:14,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:41:14,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:41:14,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:41:14,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:41:14,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:41:14,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:41:14,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:41:14,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:41:14,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 13:41:14,128 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 13:41:14,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:41:14,128 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 13:41:14,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:41:14,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:41:14,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:41:14,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:41:14,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:41:14,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 13:41:14,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:41:14,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:41:14,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:41:14,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:41:14,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:41:14,132 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 13:41:14,132 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 13:41:14,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:41:14,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:41:14,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 13:41:14,133 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 [2022-11-23 13:41:14,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:41:14,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:41:14,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:41:14,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:41:14,570 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:41:14,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2022-11-23 13:41:17,760 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:41:18,025 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:41:18,025 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2022-11-23 13:41:18,046 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/eecf0da6d/a888af671f2d421b85f4ceb318cd190a/FLAG0c5c31fd5 [2022-11-23 13:41:18,067 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/data/eecf0da6d/a888af671f2d421b85f4ceb318cd190a [2022-11-23 13:41:18,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:41:18,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:41:18,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:41:18,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:41:18,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:41:18,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6312eb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18, skipping insertion in model container [2022-11-23 13:41:18,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:41:18,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:41:18,360 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_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2022-11-23 13:41:18,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:41:18,489 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:41:18,502 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_d0abaf56-6770-4887-8120-e57065f653dd/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2022-11-23 13:41:18,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:41:18,542 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:41:18,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18 WrapperNode [2022-11-23 13:41:18,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:41:18,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:41:18,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:41:18,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:41:18,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,597 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2022-11-23 13:41:18,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:41:18,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:41:18,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:41:18,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:41:18,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:41:18,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:41:18,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:41:18,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:41:18,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (1/1) ... [2022-11-23 13:41:18,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:41:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:41:18,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:41:18,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:41:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:41:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 13:41:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 13:41:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 13:41:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:41:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:41:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 13:41:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 13:41:18,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:41:18,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:41:19,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:41:19,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:41:19,424 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 13:41:19,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:19 BoogieIcfgContainer [2022-11-23 13:41:19,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:41:19,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:41:19,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:41:19,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:41:19,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:41:18" (1/3) ... [2022-11-23 13:41:19,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602f96f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:19, skipping insertion in model container [2022-11-23 13:41:19,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:18" (2/3) ... [2022-11-23 13:41:19,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602f96f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:41:19, skipping insertion in model container [2022-11-23 13:41:19,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:19" (3/3) ... [2022-11-23 13:41:19,439 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2022-11-23 13:41:19,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:41:19,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 13:41:19,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:41:19,534 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;@29319a5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:41:19,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-23 13:41:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 75 states have (on average 1.68) internal successors, (126), 93 states have internal predecessors, (126), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 13:41:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 13:41:19,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:19,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:19,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:19,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1415508078, now seen corresponding path program 1 times [2022-11-23 13:41:19,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:19,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991217925] [2022-11-23 13:41:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:19,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:19,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:19,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 13:41:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:19,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 13:41:19,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:41:19,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:19,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:19,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991217925] [2022-11-23 13:41:19,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991217925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:19,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:19,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 13:41:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645311807] [2022-11-23 13:41:19,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:19,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:41:19,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:19,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:41:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:41:19,762 INFO L87 Difference]: Start difference. First operand has 102 states, 75 states have (on average 1.68) internal successors, (126), 93 states have internal predecessors, (126), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:41:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:19,819 INFO L93 Difference]: Finished difference Result 192 states and 288 transitions. [2022-11-23 13:41:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:41:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 13:41:19,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:19,833 INFO L225 Difference]: With dead ends: 192 [2022-11-23 13:41:19,833 INFO L226 Difference]: Without dead ends: 65 [2022-11-23 13:41:19,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:41:19,842 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:19,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:19,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-23 13:41:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-23 13:41:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 57 states have internal predecessors, (69), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-11-23 13:41:19,904 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 9 [2022-11-23 13:41:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:19,906 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-11-23 13:41:19,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:41:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-11-23 13:41:19,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 13:41:19,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:19,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:19,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:20,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:20,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1416449344, now seen corresponding path program 1 times [2022-11-23 13:41:20,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:20,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641310189] [2022-11-23 13:41:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:20,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:20,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:20,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:20,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 13:41:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:20,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:41:20,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:41:20,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:20,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:20,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641310189] [2022-11-23 13:41:20,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641310189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:20,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:20,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:41:20,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203787557] [2022-11-23 13:41:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:41:20,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:41:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:41:20,307 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:41:20,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:20,399 INFO L93 Difference]: Finished difference Result 135 states and 164 transitions. [2022-11-23 13:41:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:41:20,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 13:41:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:20,402 INFO L225 Difference]: With dead ends: 135 [2022-11-23 13:41:20,402 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 13:41:20,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:41:20,404 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 9 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:20,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 215 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 13:41:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2022-11-23 13:41:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 61 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2022-11-23 13:41:20,415 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 9 [2022-11-23 13:41:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:20,416 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2022-11-23 13:41:20,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:41:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2022-11-23 13:41:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 13:41:20,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:20,417 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:20,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:20,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:20,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:20,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash 148928534, now seen corresponding path program 1 times [2022-11-23 13:41:20,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:20,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716846521] [2022-11-23 13:41:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:20,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:20,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:20,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:20,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 13:41:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:20,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:41:20,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:41:20,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:20,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716846521] [2022-11-23 13:41:20,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716846521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:20,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:20,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:41:20,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680656491] [2022-11-23 13:41:20,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:20,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:41:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:41:20,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:20,715 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:20,769 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2022-11-23 13:41:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:41:20,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-23 13:41:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:20,772 INFO L225 Difference]: With dead ends: 73 [2022-11-23 13:41:20,773 INFO L226 Difference]: Without dead ends: 72 [2022-11-23 13:41:20,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:20,775 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 3 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:20,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 147 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-23 13:41:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-11-23 13:41:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2022-11-23 13:41:20,789 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 16 [2022-11-23 13:41:20,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:20,790 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2022-11-23 13:41:20,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2022-11-23 13:41:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:41:20,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:20,794 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:20,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:21,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:21,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2021116994, now seen corresponding path program 1 times [2022-11-23 13:41:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:21,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517133111] [2022-11-23 13:41:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:21,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:21,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:21,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:21,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 13:41:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:21,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:41:21,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:41:21,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:21,094 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:21,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517133111] [2022-11-23 13:41:21,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517133111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:21,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:21,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:41:21,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400675544] [2022-11-23 13:41:21,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:21,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:41:21,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:21,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:41:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:21,099 INFO L87 Difference]: Start difference. First operand 69 states and 82 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:21,133 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2022-11-23 13:41:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:41:21,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 13:41:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:21,137 INFO L225 Difference]: With dead ends: 72 [2022-11-23 13:41:21,137 INFO L226 Difference]: Without dead ends: 71 [2022-11-23 13:41:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:21,144 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:21,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 146 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-23 13:41:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2022-11-23 13:41:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.290909090909091) internal successors, (71), 59 states have internal predecessors, (71), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 81 transitions. [2022-11-23 13:41:21,162 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 81 transitions. Word has length 18 [2022-11-23 13:41:21,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:21,163 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 81 transitions. [2022-11-23 13:41:21,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:21,164 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2022-11-23 13:41:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:41:21,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:21,165 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:21,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:21,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:21,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2021049468, now seen corresponding path program 1 times [2022-11-23 13:41:21,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:21,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648981153] [2022-11-23 13:41:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:21,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:21,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:21,378 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:21,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 13:41:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:21,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:41:21,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:41:21,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:21,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:21,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648981153] [2022-11-23 13:41:21,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648981153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:21,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:21,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:41:21,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653108213] [2022-11-23 13:41:21,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:21,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:41:21,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:21,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:41:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:41:21,505 INFO L87 Difference]: Start difference. First operand 68 states and 81 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:21,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:21,914 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2022-11-23 13:41:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:41:21,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 13:41:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:21,922 INFO L225 Difference]: With dead ends: 84 [2022-11-23 13:41:21,922 INFO L226 Difference]: Without dead ends: 83 [2022-11-23 13:41:21,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:41:21,923 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 55 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:21,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 167 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 13:41:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-23 13:41:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 73. [2022-11-23 13:41:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 64 states have internal predecessors, (77), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2022-11-23 13:41:21,932 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 87 transitions. Word has length 18 [2022-11-23 13:41:21,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:21,933 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 87 transitions. [2022-11-23 13:41:21,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:21,933 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2022-11-23 13:41:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 13:41:21,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:21,934 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] [2022-11-23 13:41:21,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:22,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:22,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:22,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1903560936, now seen corresponding path program 1 times [2022-11-23 13:41:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:22,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784386635] [2022-11-23 13:41:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:22,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:22,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:22,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:22,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 13:41:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:22,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:41:22,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:41:22,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:22,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:22,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784386635] [2022-11-23 13:41:22,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784386635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:22,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:22,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:41:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909049658] [2022-11-23 13:41:22,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:22,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:41:22,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:41:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:41:22,926 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:26,722 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2022-11-23 13:41:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:41:26,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-23 13:41:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:26,724 INFO L225 Difference]: With dead ends: 89 [2022-11-23 13:41:26,724 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 13:41:26,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:26,725 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 56 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:26,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 250 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 13:41:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 13:41:26,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 67. [2022-11-23 13:41:26,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 58 states have internal predecessors, (70), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:26,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2022-11-23 13:41:26,737 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 21 [2022-11-23 13:41:26,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:26,737 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2022-11-23 13:41:26,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:41:26,737 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2022-11-23 13:41:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 13:41:26,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:26,739 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:26,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:26,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:26,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:26,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1771907670, now seen corresponding path program 1 times [2022-11-23 13:41:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:26,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303397192] [2022-11-23 13:41:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:26,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:26,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:26,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:26,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 13:41:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:27,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:41:27,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,137 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:27,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303397192] [2022-11-23 13:41:27,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303397192] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:27,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1576537129] [2022-11-23 13:41:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:27,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:41:27,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:41:27,143 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:41:27,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-23 13:41:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:27,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:41:27,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:27,308 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1576537129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:27,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821634020] [2022-11-23 13:41:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:27,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:41:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:41:27,395 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:41:27,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 13:41:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:27,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:41:27,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:27,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:27,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821634020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:27,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 13:41:27,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 8, 8, 8] total 10 [2022-11-23 13:41:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30834105] [2022-11-23 13:41:27,551 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 13:41:27,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:41:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:41:27,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:27,553 INFO L87 Difference]: Start difference. First operand 67 states and 80 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 13:41:27,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:27,758 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2022-11-23 13:41:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 13:41:27,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2022-11-23 13:41:27,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:27,760 INFO L225 Difference]: With dead ends: 116 [2022-11-23 13:41:27,760 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 13:41:27,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-23 13:41:27,761 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 55 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:27,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 518 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 13:41:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-23 13:41:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 61 states have internal predecessors, (69), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 13:41:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-11-23 13:41:27,778 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 38 [2022-11-23 13:41:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:27,778 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-11-23 13:41:27,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 13:41:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-11-23 13:41:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 13:41:27,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:27,781 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:41:27,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:27,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:28,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-23 13:41:28,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:41:28,383 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:28,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:28,384 INFO L85 PathProgramCache]: Analyzing trace with hash -939234329, now seen corresponding path program 1 times [2022-11-23 13:41:28,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:28,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329303179] [2022-11-23 13:41:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:28,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:28,386 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:28,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-23 13:41:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:28,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:41:28,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:28,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:28,526 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:28,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329303179] [2022-11-23 13:41:28,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329303179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:28,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:28,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:41:28,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182611608] [2022-11-23 13:41:28,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:28,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:41:28,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:28,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:41:28,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:41:28,529 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:28,590 INFO L93 Difference]: Finished difference Result 132 states and 148 transitions. [2022-11-23 13:41:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 13:41:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-23 13:41:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:28,592 INFO L225 Difference]: With dead ends: 132 [2022-11-23 13:41:28,592 INFO L226 Difference]: Without dead ends: 102 [2022-11-23 13:41:28,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:41:28,593 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 28 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:28,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 338 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-23 13:41:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 76. [2022-11-23 13:41:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 66 states have internal predecessors, (75), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 13:41:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2022-11-23 13:41:28,636 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 46 [2022-11-23 13:41:28,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:28,636 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2022-11-23 13:41:28,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2022-11-23 13:41:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 13:41:28,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:28,638 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:41:28,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:28,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:28,849 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2075869289, now seen corresponding path program 1 times [2022-11-23 13:41:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:28,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251559315] [2022-11-23 13:41:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:28,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:28,851 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:28,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-23 13:41:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:28,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 13:41:28,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:41:29,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:29,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:29,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251559315] [2022-11-23 13:41:29,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251559315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:29,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:29,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 13:41:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369728167] [2022-11-23 13:41:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 13:41:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 13:41:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:41:29,012 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:29,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:29,104 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2022-11-23 13:41:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:41:29,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-23 13:41:29,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:29,105 INFO L225 Difference]: With dead ends: 107 [2022-11-23 13:41:29,105 INFO L226 Difference]: Without dead ends: 67 [2022-11-23 13:41:29,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:41:29,107 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:29,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 388 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-23 13:41:29,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-23 13:41:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 58 states have internal predecessors, (65), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-23 13:41:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2022-11-23 13:41:29,114 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 46 [2022-11-23 13:41:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:29,115 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2022-11-23 13:41:29,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-11-23 13:41:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 13:41:29,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:29,117 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-11-23 13:41:29,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:29,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:29,339 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:29,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:29,339 INFO L85 PathProgramCache]: Analyzing trace with hash -292553898, now seen corresponding path program 2 times [2022-11-23 13:41:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:29,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298946797] [2022-11-23 13:41:29,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 13:41:29,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:29,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:29,341 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:29,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-23 13:41:29,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 13:41:29,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 13:41:29,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 13:41:29,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 13:41:29,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:29,570 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:29,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298946797] [2022-11-23 13:41:29,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298946797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:29,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:29,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 13:41:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783537641] [2022-11-23 13:41:29,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:29,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:41:29,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:29,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:41:29,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:29,572 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:29,936 INFO L93 Difference]: Finished difference Result 127 states and 145 transitions. [2022-11-23 13:41:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 13:41:29,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-11-23 13:41:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:29,938 INFO L225 Difference]: With dead ends: 127 [2022-11-23 13:41:29,938 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 13:41:29,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-11-23 13:41:29,939 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 102 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:29,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 483 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:41:29,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 13:41:29,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-23 13:41:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 61 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 13:41:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2022-11-23 13:41:29,953 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 50 [2022-11-23 13:41:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:29,956 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2022-11-23 13:41:29,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2022-11-23 13:41:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 13:41:29,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:29,961 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:41:29,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:30,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:30,175 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:30,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1329730220, now seen corresponding path program 1 times [2022-11-23 13:41:30,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:30,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837543593] [2022-11-23 13:41:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:30,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:30,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:30,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:30,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-23 13:41:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:30,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 13:41:30,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:30,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 13:41:30,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:30,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837543593] [2022-11-23 13:41:30,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837543593] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:30,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:41:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-11-23 13:41:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149442883] [2022-11-23 13:41:30,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:30,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:41:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:41:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:30,521 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:41:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:30,617 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-11-23 13:41:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:41:30,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2022-11-23 13:41:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:30,619 INFO L225 Difference]: With dead ends: 70 [2022-11-23 13:41:30,619 INFO L226 Difference]: Without dead ends: 69 [2022-11-23 13:41:30,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:30,620 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 16 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:30,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 163 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-23 13:41:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-23 13:41:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 60 states have internal predecessors, (66), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 13:41:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2022-11-23 13:41:30,628 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 52 [2022-11-23 13:41:30,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:30,629 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2022-11-23 13:41:30,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:41:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2022-11-23 13:41:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-23 13:41:30,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:30,630 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:41:30,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:30,839 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1728035976, now seen corresponding path program 1 times [2022-11-23 13:41:30,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:30,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307881701] [2022-11-23 13:41:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:30,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:30,842 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:30,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-23 13:41:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:30,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 13:41:30,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:30,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 13:41:31,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:31,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307881701] [2022-11-23 13:41:31,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307881701] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:31,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:41:31,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-11-23 13:41:31,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676343762] [2022-11-23 13:41:31,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:31,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:41:31,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:41:31,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:41:31,154 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:31,303 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2022-11-23 13:41:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:41:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2022-11-23 13:41:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:31,304 INFO L225 Difference]: With dead ends: 74 [2022-11-23 13:41:31,305 INFO L226 Difference]: Without dead ends: 73 [2022-11-23 13:41:31,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:41:31,305 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:31,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 160 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:41:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-23 13:41:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2022-11-23 13:41:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 59 states have internal predecessors, (65), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 13:41:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2022-11-23 13:41:31,315 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 53 [2022-11-23 13:41:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:31,316 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2022-11-23 13:41:31,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2022-11-23 13:41:31,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 13:41:31,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:31,317 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:31,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:31,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:31,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash 18450109, now seen corresponding path program 1 times [2022-11-23 13:41:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:31,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763478168] [2022-11-23 13:41:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:31,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:31,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:31,530 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:31,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-23 13:41:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:31,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 13:41:31,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:31,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:31,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:31,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763478168] [2022-11-23 13:41:31,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763478168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1082689605] [2022-11-23 13:41:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:31,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:41:31,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:41:31,949 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:41:31,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-23 13:41:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:32,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 13:41:32,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:32,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:32,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1082689605] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:32,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419401286] [2022-11-23 13:41:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:41:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:41:32,183 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:41:32,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 13:41:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:32,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 13:41:32,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:32,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:32,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419401286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:32,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-23 13:41:32,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7, 13] total 15 [2022-11-23 13:41:32,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850679829] [2022-11-23 13:41:32,650 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-23 13:41:32,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 13:41:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 13:41:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-23 13:41:32,651 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 13:41:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:33,079 INFO L93 Difference]: Finished difference Result 128 states and 144 transitions. [2022-11-23 13:41:33,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 13:41:33,081 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 60 [2022-11-23 13:41:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:33,082 INFO L225 Difference]: With dead ends: 128 [2022-11-23 13:41:33,082 INFO L226 Difference]: Without dead ends: 99 [2022-11-23 13:41:33,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:41:33,084 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 52 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:33,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 829 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 13:41:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-23 13:41:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2022-11-23 13:41:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 81 states have (on average 1.1111111111111112) internal successors, (90), 82 states have internal predecessors, (90), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2022-11-23 13:41:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2022-11-23 13:41:33,093 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 60 [2022-11-23 13:41:33,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:33,094 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2022-11-23 13:41:33,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-23 13:41:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2022-11-23 13:41:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 13:41:33,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:33,095 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:33,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2022-11-23 13:41:33,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:33,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:33,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:33,697 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:33,698 INFO L85 PathProgramCache]: Analyzing trace with hash -507372569, now seen corresponding path program 1 times [2022-11-23 13:41:33,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:33,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504117890] [2022-11-23 13:41:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:33,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:33,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:33,700 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:33,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-23 13:41:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:33,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:41:33,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 13:41:33,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:41:33,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:33,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504117890] [2022-11-23 13:41:33,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504117890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:41:33,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:41:33,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:41:33,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150258325] [2022-11-23 13:41:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:33,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:41:33,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:41:33,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:33,835 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:34,155 INFO L93 Difference]: Finished difference Result 99 states and 110 transitions. [2022-11-23 13:41:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:41:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2022-11-23 13:41:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:34,156 INFO L225 Difference]: With dead ends: 99 [2022-11-23 13:41:34,157 INFO L226 Difference]: Without dead ends: 93 [2022-11-23 13:41:34,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:41:34,157 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:34,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 13:41:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-23 13:41:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2022-11-23 13:41:34,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 67 states have internal predecessors, (74), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-23 13:41:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2022-11-23 13:41:34,165 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 62 [2022-11-23 13:41:34,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:34,166 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2022-11-23 13:41:34,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 13:41:34,166 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2022-11-23 13:41:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 13:41:34,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:41:34,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:34,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:34,379 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-23 13:41:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:41:34,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1389783085, now seen corresponding path program 1 times [2022-11-23 13:41:34,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 13:41:34,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166497104] [2022-11-23 13:41:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:34,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:34,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 13:41:34,381 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 13:41:34,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-23 13:41:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:34,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 13:41:34,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:34,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 13:41:34,720 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 13:41:34,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166497104] [2022-11-23 13:41:34,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166497104] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:34,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113721198] [2022-11-23 13:41:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:34,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 13:41:34,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 13:41:34,723 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 13:41:34,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-23 13:41:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:34,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 13:41:34,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 13:41:34,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 13:41:35,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1113721198] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:41:35,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964818263] [2022-11-23 13:41:35,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:41:35,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:41:35,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:41:35,023 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:41:35,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 13:41:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:41:35,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:41:35,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:41:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 13:41:35,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:41:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 13:41:35,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964818263] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 13:41:35,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2022-11-23 13:41:35,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8, 8, 8, 8] total 16 [2022-11-23 13:41:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669605753] [2022-11-23 13:41:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:41:35,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:41:35,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 13:41:35,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:41:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-23 13:41:35,348 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 13:41:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:41:35,430 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2022-11-23 13:41:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:41:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 68 [2022-11-23 13:41:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:41:35,431 INFO L225 Difference]: With dead ends: 78 [2022-11-23 13:41:35,431 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:41:35,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 13:41:35,432 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 10 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:41:35,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 160 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:41:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:41:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:41:35,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:41:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:41:35,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-11-23 13:41:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:41:35,433 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:41:35,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 13:41:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:41:35,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:41:35,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-23 13:41:35,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-23 13:41:35,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-23 13:41:35,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-23 13:41:35,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-23 13:41:35,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-23 13:41:35,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-23 13:41:35,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-23 13:41:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-23 13:41:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-23 13:41:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-23 13:41:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-23 13:41:35,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-23 13:41:35,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-23 13:41:35,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-23 13:41:35,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-23 13:41:35,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:35,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:35,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-23 13:41:36,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 13:41:36,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:41:39,050 INFO L899 garLoopResultBuilder]: For program point L60(lines 58 73) no Hoare annotation was computed. [2022-11-23 13:41:39,050 INFO L899 garLoopResultBuilder]: For program point base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-23 13:41:39,051 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2022-11-23 13:41:39,051 INFO L895 garLoopResultBuilder]: At program point L48-1(lines 38 53) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-23 13:41:39,051 INFO L899 garLoopResultBuilder]: For program point base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-23 13:41:39,051 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 76) no Hoare annotation was computed. [2022-11-23 13:41:39,051 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2022-11-23 13:41:39,052 INFO L899 garLoopResultBuilder]: For program point base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 78) no Hoare annotation was computed. [2022-11-23 13:41:39,052 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-11-23 13:41:39,052 INFO L895 garLoopResultBuilder]: At program point L74(lines 36 76) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-23 13:41:39,052 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 73) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0))) [2022-11-23 13:41:39,052 INFO L902 garLoopResultBuilder]: At program point base2fltENTRY(lines 25 83) the Hoare annotation is: true [2022-11-23 13:41:39,052 INFO L899 garLoopResultBuilder]: For program point base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-23 13:41:39,052 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-11-23 13:41:39,052 INFO L899 garLoopResultBuilder]: For program point base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 78) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point base2fltFINAL(lines 25 83) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 35) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L59(lines 58 73) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 25 83) no Hoare annotation was computed. [2022-11-23 13:41:39,053 INFO L895 garLoopResultBuilder]: At program point L80(lines 29 82) the Hoare annotation is: (let ((.cse0 (forall ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (not (= |base2flt_#in~e| ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|)))))) (and (or (exists ((|v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2| (_ BitVec 8))) (= base2flt_~e ((_ sign_extend 24) |v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2|))) .cse0) (or (not (= |base2flt_#in~m| (_ bv0 32))) (and (= base2flt_~m (_ bv0 32)) (= base2flt_~__retres4~0 (_ bv0 32))) .cse0))) [2022-11-23 13:41:39,053 INFO L899 garLoopResultBuilder]: For program point L39(lines 38 53) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 113) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 352) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point L316-1(lines 316 352) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L902 garLoopResultBuilder]: At program point L341-1(lines 328 346) the Hoare annotation is: true [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 134) no Hoare annotation was computed. [2022-11-23 13:41:39,054 INFO L899 garLoopResultBuilder]: For program point L292(lines 280 307) no Hoare annotation was computed. [2022-11-23 13:41:39,055 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2022-11-23 13:41:39,055 INFO L899 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2022-11-23 13:41:39,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 110) no Hoare annotation was computed. [2022-11-23 13:41:39,056 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 138) no Hoare annotation was computed. [2022-11-23 13:41:39,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 13:41:39,056 INFO L895 garLoopResultBuilder]: At program point L127-2(lines 127 138) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 1) |ULTIMATE.start_addflt_~ea~0#1|))) (and (bvsle (_ bv6442450944 33) (bvadd .cse0 (bvneg ((_ sign_extend 1) |ULTIMATE.start_addflt_~eb~0#1|)))) (bvsle (bvadd .cse0 (_ bv128 33)) (_ bv2147483647 33)) (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|))) [2022-11-23 13:41:39,056 INFO L902 garLoopResultBuilder]: At program point L317(lines 313 353) the Hoare annotation is: true [2022-11-23 13:41:39,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 13:41:39,056 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point L284-2(lines 284 288) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 142) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 110) no Hoare annotation was computed. [2022-11-23 13:41:39,057 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 147) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L899 garLoopResultBuilder]: For program point L318-1(lines 316 350) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L902 garLoopResultBuilder]: At program point L252(line 252) the Hoare annotation is: true [2022-11-23 13:41:39,058 INFO L899 garLoopResultBuilder]: For program point L252-1(line 252) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2022-11-23 13:41:39,058 INFO L902 garLoopResultBuilder]: At program point L145(lines 94 147) the Hoare annotation is: true [2022-11-23 13:41:39,059 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 273) no Hoare annotation was computed. [2022-11-23 13:41:39,059 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 273) no Hoare annotation was computed. [2022-11-23 13:41:39,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 142) no Hoare annotation was computed. [2022-11-23 13:41:39,059 INFO L902 garLoopResultBuilder]: At program point L294-1(lines 294 303) the Hoare annotation is: true [2022-11-23 13:41:39,059 INFO L895 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2022-11-23 13:41:39,059 INFO L899 garLoopResultBuilder]: For program point L253-1(line 253) no Hoare annotation was computed. [2022-11-23 13:41:39,060 INFO L902 garLoopResultBuilder]: At program point L146(lines 84 148) the Hoare annotation is: true [2022-11-23 13:41:39,060 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-11-23 13:41:39,060 INFO L899 garLoopResultBuilder]: For program point L113-1(line 113) no Hoare annotation was computed. [2022-11-23 13:41:39,060 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2022-11-23 13:41:39,060 INFO L899 garLoopResultBuilder]: For program point L254-1(line 254) no Hoare annotation was computed. [2022-11-23 13:41:39,060 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 312) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point L279-1(lines 250 356) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 325) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point L321-2(lines 321 325) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 116) no Hoare annotation was computed. [2022-11-23 13:41:39,061 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 309) no Hoare annotation was computed. [2022-11-23 13:41:39,062 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (and (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)) (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|))) (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_addflt_~ea~0#1|) (bvneg ((_ sign_extend 1) |ULTIMATE.start_addflt_~eb~0#1|))) (_ bv2147483647 33))) [2022-11-23 13:41:39,062 INFO L899 garLoopResultBuilder]: For program point L115-1(line 115) no Hoare annotation was computed. [2022-11-23 13:41:39,062 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-11-23 13:41:39,062 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 301) no Hoare annotation was computed. [2022-11-23 13:41:39,062 INFO L899 garLoopResultBuilder]: For program point L297-2(lines 297 301) no Hoare annotation was computed. [2022-11-23 13:41:39,062 INFO L902 garLoopResultBuilder]: At program point L355(lines 226 357) the Hoare annotation is: true [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 265) no Hoare annotation was computed. [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 250 356) no Hoare annotation was computed. [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 116) no Hoare annotation was computed. [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 290) no Hoare annotation was computed. [2022-11-23 13:41:39,063 INFO L902 garLoopResultBuilder]: At program point L281-2(lines 281 290) the Hoare annotation is: true [2022-11-23 13:41:39,063 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 340) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L331-2(lines 330 346) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 113) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L117-2(line 117) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2022-11-23 13:41:39,064 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point L266-1(lines 266 275) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 134) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point L134-1(line 134) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 19) no Hoare annotation was computed. [2022-11-23 13:41:39,065 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 16 21) no Hoare annotation was computed. [2022-11-23 13:41:39,066 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 16 21) the Hoare annotation is: true [2022-11-23 13:41:39,066 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 16 21) no Hoare annotation was computed. [2022-11-23 13:41:39,066 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-23 13:41:39,069 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:41:39,071 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:41:39,079 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,080 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,081 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,084 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,085 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,085 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,086 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,086 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,086 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,087 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,087 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,087 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,087 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,088 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,088 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,088 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,088 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,089 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,089 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,089 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,090 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,090 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,090 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,090 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:41:39 BoogieIcfgContainer [2022-11-23 13:41:39,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:41:39,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:41:39,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:41:39,092 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:41:39,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:19" (3/4) ... [2022-11-23 13:41:39,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:41:39,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2022-11-23 13:41:39,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-23 13:41:39,108 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 13:41:39,108 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-23 13:41:39,109 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 13:41:39,109 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:41:39,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && ((!(unknown-#in~m-unknown == 0bv32) || (m == 0bv32 && __retres4 == 0bv32)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-23 13:41:39,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-23 13:41:39,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-23 13:41:39,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) [2022-11-23 13:41:39,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:41:39,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:41:39,184 INFO L158 Benchmark]: Toolchain (without parser) took 21110.02ms. Allocated memory was 62.9MB in the beginning and 107.0MB in the end (delta: 44.0MB). Free memory was 33.8MB in the beginning and 51.7MB in the end (delta: -17.8MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,185 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:41:39,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.79ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 33.7MB in the beginning and 61.7MB in the end (delta: -28.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.93ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,186 INFO L158 Benchmark]: Boogie Preprocessor took 68.76ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 57.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,187 INFO L158 Benchmark]: RCFGBuilder took 757.45ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 61.2MB in the end (delta: -3.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,187 INFO L158 Benchmark]: TraceAbstraction took 19662.17ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 60.3MB in the beginning and 56.8MB in the end (delta: 3.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,187 INFO L158 Benchmark]: Witness Printer took 92.03ms. Allocated memory is still 107.0MB. Free memory was 56.8MB in the beginning and 51.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:41:39,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.79ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 33.7MB in the beginning and 61.7MB in the end (delta: -28.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.93ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.76ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 57.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.45ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 61.2MB in the end (delta: -3.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 19662.17ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 60.3MB in the beginning and 56.8MB in the end (delta: 3.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 92.03ms. Allocated memory is still 107.0MB. Free memory was 56.8MB in the beginning and 51.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 110]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 113]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 116]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 134]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 142]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 142]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 102 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 428 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 4208 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3128 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 881 IncrementalHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 1080 mSDtfsCounter, 881 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1404 GetRequests, 1293 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=0, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 91 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 84 PreInvPairs, 119 NumberOfFragments, 157 HoareAnnotationTreeSize, 84 FomulaSimplifications, 145 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1179 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 898 NumberOfCodeBlocks, 880 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1351 ConstructedInterpolants, 33 QuantifiedInterpolants, 2905 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1681 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 30 InterpolantComputations, 13 PerfectInterpolantSequences, 387/444 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2022-11-23 13:41:39,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && ((!(unknown-#in~m-unknown == 0bv32) || (m == 0bv32 && __retres4 == 0bv32)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 38]: Loop Invariant [2022-11-23 13:41:39,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 58]: Loop Invariant [2022-11-23 13:41:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,205 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant [2022-11-23 13:41:39,205 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,206 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,206 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,206 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,206 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] [2022-11-23 13:41:39,207 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: e == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) && (!(unknown-#in~m-unknown == 0bv32) || (forall v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2 : bv8 :: !(unknown-#in~e-unknown == ~sign_extendFrom8To32(v_ULTIMATE.start_main_~ea~2#1_BEFORE_CALL_2)))) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 13:41:39,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0abaf56-6770-4887-8120-e57065f653dd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE